There are mods? Coooooool.
Oh yeah....tons. Look here:

http://www.gibberlings3.net

Ok, I've never played No1 before, so I'll give it a whirl.
There's a mod that allows you to play BG1/SoA(Shadows of Amn)/ToB(Throne of Bhaal) as one single campaign. It's found at G3, also....................