Just to let you know firstly that there is no such thing as a GF3 MX
Maeg sez: Updated ^_^ The nVidia cards are reasonably different enough in performance and technology, as well as having such a large market, to keep them separate. Maybe having more than one class of ATi card, then Matrox (since they all lean towards visual quality over speed), then an "Other" for more diverse things like the Xabre, and intergrated solutions. Oh, and Voodoo cards for those who still have them.
I know there's a limit to the number of poll options, and the poll is already up. But if you're looking for a better view of who has what video card, then it could be something to look at in future.