So I'm planning to DM a 3.5e D&D game for casual non-optimizing people in a setting I'm creating. In this setting, the base classes I've retained are Fighter, Monk, Wizard, Sorcerer, Cleric, Shugenja (from Complete Divine), Rogue and Ninja (from Complete Adventurer).
I've already figured something out for Rogues, but I want to make Fighters and Monks better too so that the classes are mostly balanced because I'd hate for any player to not have fun with his character. I basically want to give them options and things they can do (mostly in combat) if they decide to play these classes.
For example, I play a Barbarian in another 3.5e game, and we've incorporated the Pathfinder rules for Rage powers and Rage rounds per day. It seems that the Pathfinder Fighter isn't any better than the 3.5e Fighter, however.
Are there any existing resources that let me do this? What have you done in your games to make fighters and monks more useful?