Just throwing this idea out DralonXitz, you don't have to take it, but since in a way you're almost requiring us to be primary combatants (rather than spellcasters or what not), perhaps using the gestalt rules, found here, and requiring one full BAB class as one of the sides of the gestalt, would give the characters more breadth.
Cause I keep wanting to play a dragonriding spellcaster in my head, and it's near impossible to get +5 BAB, the required level of dragonrider, and any spellcasting worth it.
Plus for such a heroic style game, I think it would be cool