For the price point you want to stay in, its not really possible. You'll need a desktop.
Basically you need to ask yourself which is more important, playing latest games or portability.
If your primary issue is playing latest games, then let us help you build a really nice gaming desktop for that price.
If your primary issue is portability, then simply ask what the best laptop you could buy for under $1,000 is? Alienware won't be in that lineup as they are overpriced.
Probably be a Dell, Asus, HP, etc.