Got my 15" I7 today! If I want to use windows for most stuff would that be really weird?
No it isn't weird, if people around you are using windows apps and do programming and stuff with windows then you'll have no choice. But if you're doing apps like photoshop, then you can get the mac version which runs better in OS X. The point of getting a mac is the compatibility and freedom to have both Windows and OS X at your disposal, and also of course the look, feel and design of the mac.