I have just purchased the original Macpro 2.66 which I believe is - MA356LL/A Model No: A1186 (EMC 2113) Can I ask the following questions please and if someone could answer them I'd appreciate it very much. 1. What is the largest sized hard disc that this machine can handle will it take 4 x 2tb drives, says on apple site max of 500gb? 2. Can this mac handle OSX Mountain Lion as an operating system?. 3. Can you put Windows 8 on the boot camp drive? And finally , in specs it says it takes 667 , DDR 2 Fully Buffered DIMM Ram, I can only see server ram on eay in this type , which says not suitable for desktop pcs?. Any help appreciated.