Hi All: Some Background First (My question down below in bold) So I've been torturing everyone in another thread to get help with building a Mac Pro that's driving 10 screens (6 30" cinema displays, and 4 65" 1080p displays). I've learned, thanks to netkas and calvmtl that the 5770/5870s can now work on a stock Mac Pro, see here: http://forum.netkas.org/index.php/topic,5299.0.html I've just ordered these single slot 5770 eyefinity 5 cards: http://xfxforce.com/en-gb/Products/...-Radeon-HD-5770-Single-Slot/HD-577X-Z5FH.aspx Question Does anyone have any recommendations on good 5870 eyefinity cards that will work in the Mac Pro? I want to order two 5870 eyefinity 6 cards to experiment and see which combination works best. I'm primarily concerned with power draw and noise, and was hoping those that are using 5870 eyefinity 6 cards might comment on their experiences. Particularly those that are using 2 5870 eyefinity 6 cards. Will the 2010 Mac Pro even drive two 5870 eyefinities? Any feedback welcome and once I finish the set up I'll post some pics of the end result and my findings. Thanks so much for any help!