I had no problems using my wired 360 controller on my pc w/winxp pro. Should work just fine on Vista as well.
If you have PS2 controllers you can also buy a PS2 to USB controller adapter and you can use them on your pc as well.
starcraft: "I and every PS3 fanboy alive are waiting for Versus more than FFXIII.
Me since the games were revealed, the fanboys since E3."
Skeeuk: "playstation 3 is the ultimate in gaming acceleration"