Hrmmm.... been working on some notes for Erudite combos. See if any grab you.
Energizer Bunny
Classes: Erudite 5, Sangehirn 10, Abjuration Champion (Psionic) 5
This combination uses the psionic version of the Abjurant Champion's AC boosting combined with the Fast Heal and Damage reduction of Sangehirn to create a combination with him the ability to really take a whooping. Combine this with the Shield Other/Share Pain/Bigby's Helping Hand and the various healing spells available to bard and you have a tank. A favorite of any player who simply wants to be a damage sponge.
Erudead
Classes: Erudite 5/Shadow Mind 4/Grim Psion 10/Mindbender 1
Okay, there isn't much point here except for, you turn undead and you are f'n Evil. That's it. You have telepathy, you turn undead, you got shadow mind subpsionics. It's basically as evil as it comes. Get your brood on.
Erudunant
Classes: Erudite: 5, Wizard: 1, Mind Mage 10, Cerebremancer 4
Feats: Psi-Spells, Metapsionics
I call this the Erudundant because it's redundant. The problem is, you manifest spells, you don't cast them, but the transparency rules indicate it's the same thing. So depending on your DM's view point (honestly, I'm not sure what's the right way), a 5th level Erudite is casting 3rd level spells, thus qualifying for Mind Mage. Mind mage adds +8 to Erudite and +8 to Wizard, which Cerebremancer 4 adds +4 to both. Making for a 17th level Erudite manifester and a 13th level wizard who, in theory, should be a force to be feared. Lets look at that closely.
It suffers from the same problem of the Mystic Theurge. Spread out way too much. If your DM has totally Nerfed UPPD, then this should help a whole lot, but the Erudite doesn't bring a whole lot to the table when you combine it with Wizard. Mind Mage has some cool stuff, but it’s not the end all be all. It looks great on paper, but the loss of Reflex, Fortitude, and BAB makes this combo somewhat crippling. If you are going to do this, you need to focus on your strengths. Erudite for breaking action economy. Wizard for Utility and Save-or-Suck. Trade in that Familiar and Scribe scroll for a spellbook in your head, then carry around a spellbook anyways. Are you a psionist pretending to be a wizard? A wizard pretending to be a psionist? Keep people guessing and hang back.
If your DM doesn't view a 5th level Erudite as casting 3rd level spells, then you change the build to Erudite: 3/Wizard: 5/Mind Mage 10/Cerebremancer 2. That makes you a 13th level Erudite and a 15th level wizard. I wouldn't even bother. You could go Erudite 3/Wizard 5/Cerebremancer 10/Mind Mage 2, and be Erudite: 14th ML and Wizard 16th CL, but it's still not worth it. I don't think the original is worth it, because multi-classing into two different caster classes usually is crippling. I've seen it from level 1 to level 26. It was painful the first 14 levels. PAINFUL.
Glaivedite or Claw Not-Monk
Classes: Erudite 3/Warlock 1/Cerebremancer 10/Other 6
Feats (Claw Not-Monk): Eldritch Claws, Monastic Training, Tashalatora
Feats (Glaivedite): Power attack, Great Cleave, Quicken Spell-like ability
I didn't break these up into two different builds because it's possible to do both in the same character, or just specialize into one or the other. Basically, you take your standard Glaivelock/Clawlock build and using Cerebremancer, advance in both erudite and warlock at the same time. The Warlock dishes out the round to round damage, while the Erudite part of you pumps out the buffs and the occasional nova. The Glaivedite has a reach-weapon touch attack. NASTY if you can use it with various Erudite spells/power combos.
The Claw Not-Monk uses the Monastic Training combined with the Tashalatora feat to advance as a monk, even if you aren't a monk. Thus your unarmed damage increases with your psionic level (get that monk belt) and is added to your Eldritch Claws damage, which also increases with Cerebremancer. At 14th level you are doing base 2d6 unarmed + 6d6 Claw damage. Tack on the various Claw enhancing Powers and Spells and you'll be the best at what you do, and what you do best is claw the every living hit points out of people.
And if you have the feats to blow, combine the two. Many of the feats you can take for one can boost the other. Mortalbane works with both builds just fine, and you have an additional 6 levels to play with. Hellfire warlock comes to mind, if you have the Con to blow. Note, this assumes that your DM allows for a 3rd level erudite to count as casting 2nd level Arcane spells. You may have to buy 3 levels or warlock to get past your DM. In that case, look at taking Warlock 4. Deceive Item is just an awesome power to have.
MegaMind
Classes: Erudite 5/Anarchic Initiate 10/Arch Psion 5
Alas, there are no good classes for the Arch-Psion. Making it a high enough level to qualify for it is it's own reward. Alas, there are no good builds that really help the Arch Psion without taking away from the Manifester Level which you can't give up if you want to reach Arch Psion with any haste. This build simply says, "F-it!" and embraces the chaos that is the Anarchic Initiate. It gives you some perks, while at the same time giving you all the same benefits of a wild mage, which is to say, makes things really random and screws you while sometimes helping out.
It's like being in an abusive relationship. You never know when your SO is going to come home drunk and pissed off, or bring you a box of chocolates. I call it megamind because like the movie, you are your own worst enemy. But if you can get past the need to blow yourself up and like the idea of being able to send people to Limbo, just run with it and enjoy the ride.
Power Plant
Classes: Erudite 5, Magical trickster (psionic) 3, Metamind 10, Other 2
Feats: Metapsionics. Anything that lets you gain Psionic Focus.
The power plant is focused on the metamind prestige class that, theoretically, has an unlimited number of power points. This is only applicable if the DM won't allow the Mental Pinnacle spell, which is possibly a banned spell, depending on your interpretation of the restrictions on CStP. If the DM allows Mental Pinnacle, don't bother with this combo. One of the perks of this build is the Magical trickster allows you a strange metapsionic combos. Applying a metapsionic feat once a day without psionic focus is very useful, especially when combined with other . It also allows you to spend 2 PP to reuse any skill trick, every round. Now, I don't know if there are any skill tricks you'd want to use every round, but Swift Concentration looks like a good one to me. Timely Misdirection combined with Tumble could render you completely immune to attack from one specific enemy.
Finally, unlimited PP means focus on SPEED. Arcane Spellsurge, Arcane Fusion, Metaconcert with your psicrystal and a whole lot of celerity will turn you into a Spell Slinging/Manifesting Machine. Sure, you'll never have anything really high level (Max ML is 14th), but you'll be casting 2 spells a round while manifesting a power as your Metaconcert Entity does the same thing, AND you'll have the PP to keep it up for as long as Font of Power does. Burn some ML boosting spells before hand, manifest a power with 4 different Metapsionic feats on it.
"How?", you might ask. You can, in theory, expend your psionic focus up to three times in one round. Magical trickster lets you manifest with a fourth Metapsionic feat with a value of up to 4 PP for free. Metamind 9 lets you manifest a 5th level power at no cost. That's like saying you get 9 more PP to manifest as part of the metamagic or augment. So even without boosting your ML, you can manifest a power with an ML of 28 for only 14 PP, once a day. Going Nova, indeed
Spammer
Classes: Erudite 5/Constructor 10/Ectopic Adept 5
Feats: Augment Summoning, Dual-Plane Summons, Ectopic Form, Advanced Construction, Boost Construct, Ecto Manipulation, Enhanced Construction
I'm not the biggest fan of summon builds, but if you are, the spammer is the way to go. An important step is to talk to your DM to make sure he understands exactly how this works. Spell Focus (conjuration) still applies to your spells, and you need it to get Augment Summoning. With Augment summoning, all your summon monster spells have +4 Str/+4 Con. Dual-Plane Summons allows you to give your summoned monsters your Astral Construct Menu Choices. Enhanced Construction gives you multiple Astral Constructs that don't have to have the same powers. Boost Construct gives each AC an extra Menu choice. Ecto Manipulation allows you to trade in lower menu choices for higher ones. Ectopic Form gives you base creates with more Menu Items then you'd have without the feat. Those extra menu choices can be traded in for higher ones.
Combine all this together can you can spam low level critters with monster summons, but give them upwards of 20+ extra powers. EACH. Imagine 6 critters that all can whirlwind attack for 2d6 damage and 5d4 fire damage EACH ROUND and have a reach of 10 feet with Great Cleave to boot?. Maybe you'd just want them to have 6 claw attacks with rend. Damage shield constrictor? Energy Bolts? Permanent Invisibility? How about making them Power storing critters that can release up to 6th level spells/powers at will? Or just go for the hat trick and take 'em all!
The combinations are a multitude of disgusting awesome. Stack all this on top of the already intimidating selection of critters available from summon monster and you become a spammer that all will fear and DMs will loath. Brings lots o' miniatures and invest in an auto-roll program to keep everyone from getting ticked off when your turn eats up 40 minutes of real life.
Subpsionic Binder
Classes: Erudite 3/Binder 3/Anima Mage (Psion Variant) 10/Shadow Mind 4
Okay, to be honest, I just like this one for sheer style. Shadow Mind gives you subpsionics, the most creepy of psionic powers, then combines it with Binders from Tome of Magic, which already creeps me out. Bind things into your mind, then unleash your worst nightmares. Frankly, Shadow Mind sucks after 4th level, so that works very well for me. Now, combining types of classes together usually makes you a suck at both classes, except that if you read exploit vestige, and consider how it reads, you should get an extra UPPD out of it. Check with your DM about that. Otherwise, not really that power effective, but still just cool to think about.
