Base Classes:
Soul Weaver - Warlock-ish Incarnum Base class
Metamorph
Metamorph v2.0 - Shapeshifter base class
Prestige Classes:
Master Generalist - Like the Master Specialist, but for Generalists (because they rock).
Mystic Theurge Fix - a Theurge that doesn't make me cry at night
Archmage Fix - It's the Archmage for crying out loud, IotSV shouldn't be preferred to this badboy.
Archpsion - Archmage for Psionics (and not that crappy WotC one)
Misc:
Compassionate Mage - Arcane healing ACF
Passing Grace - Paladin Spell
Telepathic Creature - 0LA template
Some of the
Improved Monster Classes - Check 'em out because they're all awesome.