Search Newegg.

You'll be surprised at how many powerful machines you can get for under $1000

I have a Lenovo y560p and it is quite excellent. You can find coupons scattered around the internet and obtain it from Lenovo's website for under $900. That comes with 8GB. Only critique I have for it is the keys aren't backlit, the screen is LCD, and the blu ray drive only comes with the 4GB version which is random and dumb.