Hey everyone, I picked up a 2.66GHz 1,1 Pro with a 7300GT yesterday for a really great price. Now after becoming accustomed to Mountain Lion on my aluminium MacBook, I have found it far sleeker & more enjoyable to use than Lion - which is of course the last iteration of OS X I'd be able to run on the Pro... ...UNLESS, I use MLPostFactor, a piece of software that allows unsupported Macs to run Mountain Lion. I have successfully used it on multiple MacBooks & iMacs in the past. MLPostFactor currently has support for the 7300GT, but not for Pro's with upgraded graphics cards. I have a Sapphire HD6570 2GB that I would love to use in the Pro - however I would only take full advantage of it when in Windows. The 7300GT would suffice in OS X. So my question is - as there a multiple PCI-E card slots in the Pro. Would there be a way to run the 7300GT in OS X & the 6570 in Windows? Thanks.