AD&D “3rd Edition” Books
I have no idea how long these books will be available as they obviously have all sorts of copyright problems, but they actually quite good fan-productions of an attempt to create a “third edition” of AD&D.
Player’s Handbook 3e
Unearthed Arcana 3e
Both links are to PDF files.
The updated site for those links is:
http://www.angelfire.com/rpg2/dnd3e/cnc.htm