Originally Posted by DArtagnan 
Playing "Diablo - Lord of Terror" campaign for Neverwinter Nights.
With PRC (a zillion extra classes and stuff) - and I'm having a ball with my Fighter/Tempest/Weapon Master.
It's - by far - the best player-made mod that I've tried for NWN. A very faithful version of Diablo with a ton of optional sidequests.
I'm constantly surprised by the excellent balance and the attention to details.
It's easily 30-40 hours of Diablo goodness with the best character development system out there.
Now this has me intrigued, I have played lots of fan mods for NWN but somehow missed this one. Will be giving it a shot real soon, thanks for the heads up DArtagnan.
For now playing
Dragonshard I just picked up on GOG for a few dollars and having more fun with it than I thought.