And seriously try Mac OS before buying. Its a highly overrated OS. Win 7 does all of it with better software support. Unless you are a professional video or sound editor,mac os is useless. The upcoming Win 8 sweeps mac off its feet if you ask me. And yes,very few software run on mac's.
Fanboys will always say:Mac is the best,like windows is something aincient,but I've used both..blah.blah...
You do not sound like a CS student and probably do not know a thing about either o.s.
Most professional video and sound editors have long moved away from os X.
As Windows now has much more capable softwares for their needs compared to osX.
Being said that,Mac does have almost all type of free and paid SW,normal people like you and me use everyday.
Moreover the iphoto,imovie and garageband that comes free with all Macs are very nice softwares,provided you know how to use them!
For a normal user a Lion is as good as Windows7,but for a serious professional (CS students are not included)Windows7 does have some added advantage,specially professional video editors(as FCP needs some serious changes to stay in competition with Windows counterparts)
But a laptop is not about os alone,and this is precisely where MacbookPro trumps most Windows laptops!
Nothing is wrong to be a MS fanboy,but try not to be an ignorant fan.
Regarding Windows8 blowing everyone...just hold your horses till October and pray that it does not turn a disaster!!