Are there any computers similar to the m11x?

Yeah, Ive been looking around for a new laptop to buy and need one for gaming and for college. I have been considering the Alienware M11x but as many people know, Alienware is a bit overpriced. So I was wondering if there was a laptop out there with the same balance of portability/battery life and Performance. The alienware m11x can get as much as 6 hrs of battery life and still plays a good amount of high demanding games on at least reasonable graphics settings. I cannot find any laptops like the m11x and was wondering of someone could help me. Thanks in advance.