bento
Explorer
You should hunt down a copy of "Unearthed Arcana" by WoTC. It's filled with all sorts of houserules you can add to their D20 system.
You want 3 basic classes like True20? Page 76 - Generic Classes
You want to simplify weapon feats? Page 94 - Weapon Group Feats
You want a couple of different spell systems? Starts on page 153 - Spell Points and Recharge Magic
http://www.wizards.com/default.asp?x=products/dndacc/881560000
I still think you should give True20 a look. Just ignore some of the modern stuff that pops up. Anything you want to keep from D&D 3.5 you can easily port over.
You want 3 basic classes like True20? Page 76 - Generic Classes
You want to simplify weapon feats? Page 94 - Weapon Group Feats
You want a couple of different spell systems? Starts on page 153 - Spell Points and Recharge Magic
http://www.wizards.com/default.asp?x=products/dndacc/881560000
I still think you should give True20 a look. Just ignore some of the modern stuff that pops up. Anything you want to keep from D&D 3.5 you can easily port over.