Some of the cards which support 2560x1600 resolution are not listed in that link.
This is the cheapest one that I've found on Newegg's website:
http://www.newegg.com/Product/Produc...82E16814142053
It does have dual DVI but like the other guy said I dont believe you need dual DVI to hook up this monitor.
This monitor is going to be a beauty. However I do have reservations about spending $1500+ on a monitor and then having to spend another several hundred on a video card just so I can utilize the max resolution.