The Asus G51VX comes out to be $400~ more than the Alienware when configured to the specifications that I would want (as close to my m15x configuration as possible)... Since I'm a sucker for bells and whistles I guess I'm going with the Alienware since it's cheaper, surprisingly...

In a real-world comparison of games, how many more FPS would you actually gain using a GTX 260M over a 9800M GT? Tests could be based in Crysis since I'm familiar with how it runs on different hardware. I know the 9800M GT is slightly faster than the 8800M GTX by 1-2 FPS, would the GTX 260M get any more than 5-10 FPS difference? If not than it's not worth it imo. There's always the possibility that I could upgrade to a GTX 260M as well, knowing how Alienware likes to flaunt their ability to swap out laptop graphics cards.