I've been scouring the web and these forums for information about a pc version Radeon HD 5870 in a '08 Mac pro as well as reading about 'flashing' which is all totally new to me and I must confess I'm still not 100% clear on everything. My Mac has an Nvidia Geforce 8800 GT in it currently so I'm wondering the following things: 1. Can I add a 5870 in there as well as my current card? I mean, will my Mac have enough power to run both cards at once? 2. Will I be able to easily connect a power lead to the 5870? 3. If I can't get my head around this 'flashing' business then will the 5870 work in pc boot camp mode with no problems as is leaving my 8800 GT for whenever I boot into Mac mode? Since I only really want the card for gaming in windows mode this would make sense anyway. Thanks in advance.