Which video card upgrade for early 2008 Mac Pro? [closed]

Which video card upgrade for early 2008 Mac Pro? [closed]

I've got an early 2008 Mac Pro, and would really like to upgrade my video card beyond the stock Radeon 2600 HD that came with my system. I run two DVI monitors (neither of which accepts the Mini DisplayPort connector). I'd also like to get a card that will work well for Windows games under Boot Camp. So it seems like my options are: