I bought this to install on my Mac Pro using Apple's boot camp program included with Mac OS X Leopard. Installation went smoothly, and I have been using it for a couple of weeks now. So far, I am impressed with Vista, and have had very few problems with it. It runs blazingly fast on my Mac Pro, and all the software I need to use runs just fine. This includes Office 2007 Professional Plus and Expression Web. In addition, all the games I have thrown at it run at full speed without any graphics glitches. Among these are Crysis, Supreme Commander: Forged Alliance, and Civilization IV: Beyond the Sword. All in all, I would recommend this package for Mac users wanting to run Windows using boot camp.