To add on to the above post....

I know I am late the party on this one but I was shopping for a new card for 5 clients on 2 monitors. I went to Toms Hardware and looked over the benchmark tests taking note of the high resolution results, with AA turned on. What really showed on the high resolutions was lack of video ram. Even though they were testing on one monitor this should resemble the video demands we put on the cards.

If you like to have one instance turned up a bit and the others at min (like me) then I think it comes down to about 3 models Nvidia 260 or 280 (if you have the $$) or the Ati 4870. Any of those in 1GB should do the trick. There are a bunch of X2 models now but I am not sure about the stability. The price really goes up when you look at the X2 models though and I am sure driver updates will improve them with time.

I purchased a 1gb 4870 and a larger power supply to cover my butt. My card is on its way so I can not report on performance just yet.

Whichever you choose, please let us know how it works out. You can put a real good load on the video and it would be cool to hear how it handles it.