Since you have a whole team with a lot of melee fighters, and that you want to be a support-type of player, you might want to consider Marshal as an option.
If you consider the version from WotC (miniature handbook p.11-13):
-Medium BAB and 2 good saves;
-d8 life and 4+int skills;
-Martial weapons, all armors and all shields but tower;
-Granting auras, a good way to give nice bonus in a 60ft radius to all allies (and some draconic auras can be used with it);
-Granting move-actions to allies near for tactical purposes (kinda neat from a time-economy perspective).
If you really intend to be a support, it can be enough. Otherwise, you might want to multiclass.
If the general concept reaches you, but that you find auras kinda inflexible, than you might want to try another type of marshall...
http://www.dandwiki.com/wiki/Marshal_3.5e_ClassI know it's homebrewed, but I a good hard look at it with the Class Construction Engine ranks, its just a little below the other classes in term of raw power. However, for a support, THIS is a real support:
-Medium BAB and 2 good saves;
-d8 life and 4+int skills;
-Martial weapons, all armors and all shields but tower;
-A system of Battle Order Points based on charisma to grant a large spectrum of bonuses to your allies (bonus move/standard/full action, a little rescue healing and temporary hp giving, abilities to make your allies do debuff attacks, etc.). Each ability takes some BOP to do and their limited number forces you to really play like a strategist/support.
In a nutshell, playing such a Marshal in combat is like playing Valryria Chronicles (for those who know). Since the special abilities of the class don't have any designated feats to enhance them (like the smite, rage or rebuke), you are free to optimize your character from there as you wish:
For a band leader/spokesperson, take some level of bard, leadership, and boost your social skills.
For a melee sergent, take some AoO feats and a reach weapon to help your melee friends.
For a ranged lieutenant, take some bow feats, of dip in a blaster-magic class.
For a corporal strategist, dip in a ToB for the White Raven Tactics and abuses the time-economy even more.
The possibilities are endless!
I tried the class as Zhuge Liang / Sun Tzu character, focusing on range and survival (since I had 6 Str/Dex/Con and 18 Int/Wis/Cha) and it was awesome!