Well, I have played once as a dark sided character, then once light sided. This is my third play through, and I have noticed a few changes;

 

1. Much deeper diolouge( such as atton asking you how you feel about being a jedi on peragus)

2.The items are much better. Like when you play as T3-M4 on peragus and you find the flamethrower, well I found a 'droid flamethrower' and a 'deadly flamthrower'. Aslo I found many more hilts and edges than normal

3.Experience come much more quickly to me(i think)

 

I do not no if it is a glitch, or a coincedence? Could you help me out? :ph34r:

Well, the more you play the more you learn. There are some things I never learned in my first few play throughs that I know about the game now.

yeah i just finished my 14th Kotor 2 game and i'm still finding out new things every game!