I noticed that the Warmage is providing the intelegence bost to damage per hit dice of damage instead of per spell. I reread the complete arcane and it says that damage is added to the damage a spell does, not per hit dice of damage. My magic missiles for my 7th level warmage are doing 4d4+4+16 damage (I have 18 intelegence). I see the same on my fireballs and other damage spells.
I honestly think this is fine given the limited spell selection of the warmage, but thought I would mention.