Yes, the limited powers is an issue, but remember the base is going to be the CStP Erudite. He's got Abjuration "spells", so it dove tails nicely.
Right now the front runner builds are:
Erudite 5/Sangehirn 10/PsiAbjChamp 5
(Energizer bunny)
Erudite 5/Constructor 10/Ectopic Adept 5
(Spammer)
Erudite 5/Magical trickster (psionic) 3//Mindbender 1/metamind 6/Arch Psion 5
(Super Metapsionic manipulation)
A very questionable view of if an Erudite counts as casting 2nd level arcane spells
Erudite 3/Warlock 1/Cerebremancer 10/Something 6 with Monastic Training/Tashalatora
(Clawlock Not-Monk)
Erudite 3/Binder 3/Anima Mage (psion Variant) 10/Shadow Mind 4
(Subpsionic Binder)
I'm not quite sure, but I think I can make the Subpsionic combine with the Psi-Spell feat Dual-Summons and binding to make for some freaky things.
Very questionable.
Anyrate, if anyone's got any Base Erudite suggestions, I'm all ears. but I think I might have found all the good/weird ones.
PS
Well and Erudite 5/Shadow Mind 4/Grim Psion 10/Mindbender 1
But other then just being f'n EVIL, I don't know what the point is.