I returned an XFX 6850 today because it could not be flashed to work in a macpro1,1. My goal is to be able to dual-boot my macpro1,1 into Windows 7 and Mac OS X. Win7 is for gaming, OSX for work. I have 1 Dell 2407WFP and 2 Dell 2408WFPs, so I want to be able to take advantage of triple-screen Eyefinity for COD on Win7. So I think my options are either the Apple 5770 or 5870. This Apple knowledge base article claims I need 2x Mini DisplayPort to Dual-Link DVI Adapter. These are $109 CND a pop... and they gobble up USB ports, meaning I'll probably need a USB card. At bare minimum using an Apple 5770 would cost me: $269 - Apple 5770 $109 - Mini DisplayPort to Dual-Link DVI Adapter $109 - Mini DisplayPort to Dual-Link DVI Adapter --- $487 x 1.13 (taxes) --- $550 ...which is a hell of a lot of money for 5770 performance... Is this really my only option? Update: Turns out I can get an active MDP to Single DVI adapter for $35. So 70+270=$340+Tax for the Apple 5770 + 2x adapters. Not as bad. Is it the best I can do? Update: I actually have 1 2407WFP and 2 2408WFP. The difference is that the 2408WFPs have a displayport (not mini, but "normal"). Update: Got 2 MiniDisplayPort<->DisplayPort cables. Just need a card now.