I've been using BootCamp for windows only games for like a year now and it works fine.
Maybe you confused BootCamp with VirtualPC, which is extremely laggy.
Oh, ew, Bootcamp? That software is total stuff. It's laggy - not to mention you can't share files with your Mac like you could do in Parallels or anything similar.
Point is, installing Windows on a Mac is spending much more than you need to, and it sucks.
Not to mention that the Mac itself would be overpriced. The hardware is total stuff for the price.
Okay guys, I might also consider this because the site has better reviews than ibuypower (from what I've seen anyway):
http://www.avadirect.com/gaming-notebook-configurator.asp?PRID=18340The only thing is there's nothing on the page that says how long it'll run on battery.