The nvidia cards can do surround over DVI from what I've heard, but I havent actually tried one. My experience is more with the ATI side of things. The ATI card will be capable of using the monitors but you'll need the right cables and adapters.
For an ATI card you would need:
1.) Monitor would be connected directly using DVI
2.) Monitor would be connected using an HDMI to DVI Cable
3.) Monitor would be connected using a Displayport to DVI adapater.
So basically for ATI you'll need an HDMI to DVI cable for one monitor, and a Displayport to DVI adapter for the other. Be sure to pick one of the adapters that specifically lists EyeFinity compatability.
Note to the above.
You need an Active Displayport adapter for Eyefinity to work. If you notice that there's a $30 difference between two adapters, that's probably the reason why. Ones Active, others Passive.
Thanks for the quick replies guys. I'll be keeping these monitors. They're so nice, the bezels are extremely thin for being stock. ~1cm. Anyways, I'll just be hunting for a nice GPU near Black Friday.
I'll keep in mind about the active adapter. Thanks!