|Whats going to narrow down your options are how big you want it to be, and what kind of battery life you hope to get out of it. If you want it to be portable and last for more than a couple hours on a charge, then you'll be stuck sacrificing some gaming power (though nVidia Optimus graphics can help with that). What games do you want to play, and at what kind of settings? That can also narrow down what you should be looking at.|
High end gaming, with ultra settings... you'll be looking at 16-17 inch laptop from Sager, Asus, or MSI. I leave out Alienware for the simple reason that they will not fit your budget as well as the others- they put too much into flashy lights and looks, and you pay a premium for it. Quality-wise, you really can't beat Sager (built on Clevo). Asus usually has some of the best price/performance gaming machines around, with great customer support. MSI is hard to beat on prices, and they can be strong competitors when it comes to features.
Check out www.xoticpc.com... you don't pay tax here, and you get an even larger discount for paying cash. Also, they are the best prices with a great selection that I know of.