I didn't bother reading all the replies but I went to business school so I'll give you my personal experience.
as people might have mentioned they don't want you to get a Mac because of the Apps you'll need to run, Excel and maybe a few other and these are only made for windows.
Get the whole Mac/PC thing out of your head at once.. a Macbook IS a PC! (personal computer) just like any other laptop. A Macbook can run Windows natively just like any other laptop can run windows natively. There's no special voodoo going on that somehow makes your macbook less capable of running windows than a 300 dollar cheapo machine like someone advised you to buy.. bad idea.. seriously.
Apple created bootcamp for people who don't want to run OSX on their macbooks which is you. Out of all the laptops I've owned the Macbook was the absolute easiest to install windows onto.. no driver issues at all, it's actually a breeze to install the drivers and it just runs better on a mac than on other laptops In my opinion. With bootcamp it's easy to install Windows and there's almost no issues.. Even if you're mildly technically challenged.
If I were you I would get the cheapest 13inch macbookpro and then spend the 300 dollars on an SSD drive. Not only will you have the sturdiest, best built best looking quality laptop in class but it will also blow your classmates cheapo plastic laptops out of the water with the sheer speed that it will run windows with on an SSD drive.
A Macbook+SSD drive is the way to go in my opinion. Honestly you don't need some greasyhaired ubuntu loving college tech support guy to disencourage you from buying a macbook.
The resell value of a mac is also ALOT higher than other notebooks.. People who buy 1000 dollar Acer/HP or whatever other brand won't even be able to sell them for more than a couple of hundred dollars a year later. I sold my 1 year old Alu macbook last month 300 dollar cheaper than I bought it... A one year old laptop.
It would be dumb not to get a macbook, I know most other laptops have better hardware but when you can't sell them afterwards it's no fun paying over 1000 dollars for a product that will be 0 dollars worth because you can't sell it again.
Windows is well supported on macs today so there's no reason not to buy one.