Hey guys, I apologize for opening yet another thread about Mac Pro 1,1 Graphics upgrades, but I want to know about specific stuff. So, the Asus DirectCU HD6870 is probably the best version of said card. It's this card: http://www.overclock3d.net/reviews/gpu_displays/asus_radeon_hd_6870_directcu/1 Reviewed here. I want to know whether this card is going to work at all in OS X without flashing - and more importantly, if it'll work after flashing in OS X, the boot menu, and Windows as well. Is anyone aware of this card, and if so, what are your experiences? I am aware of http://www.groths.org/ and all the drivers and flashing tools over there by now. Thanks!