Whatever you do, stay away from Toshiba and most four letter laptops, unless it's that three letter series from said four letter company. Also, Alienware's overpriced.
I've never tried CyberPowerPC, but I haven't heard anything bad about them yet (except for the occasional defective part, which they'd replace, albeit slowly). Also, several of the higher end ASUS laptops are just fine for gaming, while some use weird graphics cards that simply won't boot most games because of driver errors. You kinda have to do your research on that, but I haven't seen the gaming quality ASUS laptops go very high in price, usually around $1900. And when I say "gaming" in the same sentence I'm referring to a laptop, I don't mean playing everything on full settings, just being able to play on decent settings.