I would caution you- there's alot about a laptop that can affect your overall experience. For intance, I've had laptops with crappy keyboards and atrocious keypads that made for an awful experince.
I would read plenty of revioews before purchasing, becuase the specs don't really tell alot about a laptop's usability or performance.
Cheack out reviews at www.PCWorld.com and also http://www.notebookcheck.net/
The latter will tell you quite a bit about gaming performance since that is a concern for you.