I've only had one playthough of K1, and it was on Xbox, borrowed from a friend. I'd love to get the PC version, and I've been wanting to try out Jedi Knights too. The Best of Star Wars PC sounds like a good option to me. The only thing is I'm running Vista on my main computer so I'm sure that will cause problems. I do have a backup computer with XP tho, so I'll probably just use that.
I think I'll probably go DS on my next K1 playthrough, deviating from my canonical influence.