I run a refurbed ASUS G75. 2GB of GFX, 6GB RAM, i7. I picked mine up for $900 + tax + ship off NewEgg.
Runs all games pretty well, the most graphics intensive game I ran on this is Metro, on medium.
They have different versions of the G75 with different RAM, OS, HD, and maybe GFX. Worth taking a look at IMO since I got a killer deal on my G75.