Epic Endeavors (large mod) & The Darkest Day (large mod)
http://www.sorcerers.net/Games/BG2/index_teambg.htm
Character fixes, voice scripts, and the Cult of Pestilence
http://www.fortunecity.com/boozers/winelodge/79/
Assorted mods, cheats, portraits, sounds, etc... (the mods are near the bottom)
http://ankalagon2.narod.ru/
The Chosen of Mystra - lots of mods
http://chosenofmystra.db-forge.com/
Enjoy!