To francisca, diaglo, and WSmith: 
Great to see people using their old stuff.  You guys are getting milage out of books you bought 15-30 years ago.  A lot longer than my 3.0 rules lasted...
Myself, I just finished running X5-The Temple of Death, but in 3.5.
Last Saturday we has a character creation session.  I can only speak for myself:  I used:
3.5 core rules
Arms and Equipment Guide
The Complete Warrior
The Complete Divine
Forgotten Realms Campaign Setting (I'm using a domain from that book; though the campaign is set in Greyhawk).
Other players used:
Savage Species (the Half-ogre race)
Eberron (the warforged race)
Expanded Psionics Handbook