One word of advise, don't get your MPD to DP cable from Monoprice. I know a lot of people think they are great but there is a forum thread at Apple.com thats a few pages long complaining that the Monoprice MDP to DP cable doesn't work with a 5870. The Monoprice cable prevents the Mac Pro from waking up from sleep mode because of it's cheap build quality. I bought one from an Australian reseller and had the exact problem mentioned in the thread.