I have an old machine that currently has Win '98. My little sister has been using it and lately it has crashed repeatedly, the spyware is piling up and there is noticeable slowdown. I plan on reformatting. What OS should I put in, Win2k Pro or XP Pro. It's a P2 333 w/ 128MB RAM, 40G HD. XP prob needs 256 to run well so my initial choice is 2k. Any reason why I should choose XP? Keep in mind it is for my sister so please dont recommend any non-Windows OSes.