personally I think Windows 7 is a lot prettier than OSX. I don't like the metallic grey, it gets really bland after a while. plus, as shino-inuyasha said, it doesn't support many games. Also, you can't get OSX on a machine that Apple didn't make. It seems way to controlled to me, and very overrated. Of course, I'm a big Microsoft fan, especially since the Zune HD and Windows 7, so I'm a bit biased. Still, congrats on the free computer
lol