StreamOfTheSky
Adventurer
With the Warblade in the mix, you'd want Psion over Wizard - because Psions don't suffer from Arcane Spell Failure, and Warblades get armor.
I figured I'd just go with Mithral Twilight chain shirt (0% ASF) in such a scenario. Generally what I do for any arcanist. Not that providing myself with Mage Armor and the greater version thereof would be too difficult, either. I'm sure with Warblade and factotem providing encounter based ailities, psion is more powerful for such a combo than wizard due to his greater ability to "nova," but I'd still prefer wizard for party buffing ability and wide spell access anyway.