Hey guys, I've been following the news closely, and the threads on custom ROMs, reflashing, etc. I think netkas, cindori and the Rominator and others are doing fantastic work. I've got a 2 x 2.8Ghz Quad Mac Pro 3,1 with a 8800GT, 4 hard drives and dual superdrives. I'm considering upgrading it with a 120 GB SSD and a HD5970. Mostly for gaming under Windows; having it work under OS X is not a priority. As the current setup with the 8800GT uses one 6-pin PCIe power cable, and a non-OC HD 5970 needs one 6-pin and one 8-pin, I was considering taking the two molex cables from my superdrives (which I don't use) and adapt them (through an adaptor) to an 8-pin to fully power the beast card. The card should take about 3 slots, leaving room for my 8800GT. The PSU should be able to handle the draw from the card. I accept having to switch the monitor on boot / reboot. You might have been able to guess, but my main question is this: Am I overlooking things? This way, would a HD5970 work in a 3,1?