>You had better be sure that XP support is specifically
>provided before buying any board (device). XP compatibility
>is still a problem with many products. Suggest checking the
>manufacturer’s web site for XP driver updates. Larry
Actually, it's hard to go wrong with nVidia cards, due to their unified drivers system. In a nutshell, you can use the same core libraries and driver files for anything from an old TNT up to a top-shelf GF4.
As I just happened to be parsing over the nVidia drivers that come standard, I noticed many of them are certified for XP (this usually doesn't bug me too much, but at least with the certification, you presume someone in Washington actually put one the beasties on line and then stamped it as okeydokey.)
Short version...you should be okay. nVidia and MS are pretty tight (nVidia designed the graphics chips for the XBox afterall.)