You better have a brand new computer or it won't run.
Competition is alive and well in America :-). They just couldn't stand working so hard and getting left in the dust and neither could their stock holders.
"You better have a brand new computer or it won't run."
Now where did you get that idea from?
If you want to know if your XP PC can run Vista, go right here:
http://www.microsoft.com/downloads/details.aspx?familyid=42B5AC83-C24F-4863-A389-3FFC194924F8&displaylang=en
Easy.
I've been running an evaluation version of Vista for about three weeks now. I have an Athlon 64 and it runs very nicely. My video sez that I could have a better Vcard.
The presentations are beautiful and the file management is easier to read and work with. Everything zips along like a fast XP.
My hard drive is quieter. XP was a little slower; But I must admit I like the Vista OS.

I'm out of luck, huh?
You'll have to upgrade some or all of your other software, too. Best wait and buy a whole new system after we get through the infant mortality phase.