I have been asked to build a Mac computer. I need to get some help choosing the parts that I need to build it. I can't seem to figure out what motherbord to use. This computer is going to be used for graphic art for a print shop so I want somthing with losts of power. The processor I want to use is the xeon quad core just like the ones Apple is useing in the iMac except I just want to use only one CPU so I can keep my cost lower. I also would like to know what GPU would be best to use thats compatible with Windows Vista because I want to put Vista on top of lepord 10.1. Thank you for your help