I'm a big fan of the "clean, start from scratch installation". However,.. let's say you've got a PC with a good solid, relatively new W2K installation and you want to upgrade it to XP. Should I just bit the bullet and start over? Or just pop in the XP CD and hope it comes out ok? I'm assuming the only thing that would change would be the interface graphics and that for the most part, it would just overwrite what is already there and keep everything intact. Am I wrong in thinking that? Anything I could expect from doing it this way?

Basically what I'm up against has to do with my other thread where I already upgraded a bunch of PC's to W2K. And if the management decides that they want to go with XP instead,.. I don't want to have redo all these PC's from scratch again.