Check out http://www.sith-res.tk if you are interested in mods.
Modding is actually very much possible because of KOTORs similarities to NWN, the very stuff which makes up the story(the scripting) can be edited right now with the tools we have so don't get your hopes down so soon, with some patience much can be accomplished
Just look at the kinda mods they have made for BG2, whole new worlds can be found att http://www.teambg.com for example so there is much fun that can be done with RPGs not just FPS games.
Merry xmas everyone!