I saw three links and was under the impression that you could test your computer online at the the site, oops , my bad.
Anyway- after you BUY Vista (for whatever outrageus price they want), you can run the thing and find out what you have to do to upgrade to meet the specs.
A 1 means you should just seriously go back to XP. Microsoft wants your money, but not that badly. A score of 2 is the basic score you'll need to do anything on Vista worth while. A 3 (which is what we have, a high 3) is going to be the "value end", or super cheap, PCs being shipped into 2007. A 4 is a mid-range machine, and a 5 is a high-end monster that can do Aero-Glass on multiple monitors and hack into the Matrix.
Thanks Bill- I'll pass on spending money on the next latest thang.