I was thinking if you might in a distant future consider kitting BG2's NPCs to provide fair and legal means for NPCs to fight the party.
Aigleborgne has already been working on it and I must say it is very sweet although it is a lot of work (but the code I am sure can be shared).
Another good addition (still coming from Enhanced Creatures) is to have NPCs heal themselves and regain their spells after resting (just like it happens for the party).
Hope you like these ideas...
Edited by Salk, 03 May 2006 - 11:48 PM.