Hi all, I currently have a Mini and am looking at making the upgrade to a mac pro. To be honest I don't need the power of the MacPro other than wanting to play games on it via a bootcamped Windows partition. So I want a powerfull graphics card and was wondering if anyone here has a 4870 in their 09 Pro and has it running under XP or Vista (can you even run up XP on a Pro?). Also how loud is the 4870? One of the many reason why I love Macs is their quietness. From my PC days I hated graphics card that made a huge noise. I gues the other thing I like about the Pro's is that fact that you can upgrade some parts yourself. Cheers!