1,1 Mac Pro. I have a pair of 7300gt cards in it, DVI only, can do dual-link. I want to add a 27" display. Is there a way to do this? Or will I need to find a graphics card upgrade? I have zero clue what cards will work in a 1,1 Mac Pro. And, I have zero clue if there's a DVI to Minidisplay Port Adapter. Am I hosed here? Better off finding a used 30"? how does one use a minidisplay port on a 2006 Mac Pro? If there is a 100% tested video card that will work, I'd love to buy it, but I have no idea what to buy.