Flyakite
For those of you still suffering in the pits of WinXP-Hell, you can install Flyakite and make your PC look almost like it’s running OSX.
(This app is rather like looking at penises from a distance, but not actually touching them with your face. You’re not quite gay, but you’re very envious of homosexuals.)
I’ve installed it on my WinXP SP2 machine, and have had no problems so far, other than one of the default fonts being pretty ugly [Lucida Console? Wha?]. If you decide to use it, you must turn off System Restore first.