Accually I always buy my PC's with no OS installed, since I'm going to be using windows 98 se for a long while, IMO its the best OS out right now as far as windows goes.
Since its the best for gaming by far.
Windows ME just sucks, and I wouldnt touch XP with a 10 foot pole. Accually if enough people dont buy XP, microsoft might get a brain about this spyware shit.
Thats the same reason I dont use Realplayer, since they spy on what you use realplayer for, also add to the fact that realplayer just sucks.