Much more rare masks, armor, and robes, make specific quests for these hard to fine artifacts. Everytime I play through KOTOR 1 end up looking the same as every character I've used. I would like to see Sith Robe/Armor similar to what Darth Revan wore in KOTOR, and make it so that the armor does not restrict force powers. There should be Jedi specific armors that don't restrict force powers.
When you loot a character's armor it should look the same on you as it looked on the character. (EX Darth Bandon's armor)
Light sabers should be significantly more powerful then other melee weapons. Some swords were just as powerful as lightsabers in the game.
Light sabers should be very rare! By the end of KOTOR 1 you end up with a ton of lightsabers! I did'nt feel the lightsaber was a very special weapon in KOTOR 1.
More Iridorians! It would be nice to learn more about them.
Master/Apprentice system- I've read that there is going to be some aspect of this in Sith Lords, it would be great if you could pick any of the non-jedi NPC companions to pick as your apprentice.