I have a 2006 Mac Pro. I had it upgraded to 8GB of Ram. The video card has failed so I am using a non-Mac video card. Works fine - I just can't see the boot loader screen - can see everything once the OS initializes the card however. I want to install Windows 7 64-Bit (to take advantage of memory) on the machine and set it up for my kids to use. When I plop in Windows 7 Disc I get the infamous "Select CDROM Boot Type" prompt (that you can't bypass). I've thought about installing 32-bit Windows 7 and then doing an upgrade to 64 bit .. but I didn't get a chance to test that theory - 32-bit windows setup starts but gives me "Windows cannot be installed to this disk. This computer's hardware may not support booting to this disk. Ensure that the disk's controller is enabled in the computer's BIOS menu". So I'm thinking I'm probably going to have to either make a custom install DVD or I'm going to install the HDD into my Windows 7 box and prep the drive to install as an image... (ie. PE environment) Any words of wisdom? I'm not interested in getting Mac OS X on it: It shipped with an ATI X1900XT .. which died .. replaced it on warranty only to have the second one die four months after warranty was up. So this aluminum boat anchor has been sitting collecting dust for years. Two months after it failed, my Aluminum iMac failed (3 months out of warranty). I went out and bought my wife a PC laptop .. and I replaced my Mac Pro with a Windows 7 gaming rig. So suffice to say - I'm back to Windows land.