Did someone install the RC of Windows 7 on his Mac Pro and how does it work?! I do need Windows on my coming Mac Pro - but I will only need it until January 2010 due to another software I am dependent on. I was thiniking about buying Windows XP Professional. But as Windows 7 RC-Version will be for free use until 2010 it would be an alternative. What do you guys think? Any experiences so far?