I have a 2008 mac pro, and will be upgrading to the 4870 once Apple ship the cards. However, I'll be running a triple-head setup and as such need a second card to go in to power the third display. Firstly, can the GT 120 run in the 2008 Mac Pro? I think it can, and as it is bus-powered card I wouldn't need any more feeds off the motherboard. Secondly, is it possible to order one from Apple? They *have* to sell them surely for Mac Pro owners who need extra cards?