Before making a purchase of a new laptop that you want to use for gaming, you might want to have a look at this list and some of the benchmarks posted at
Notebookcheck: Comparison of Graphic Cards. Because once you purchase a laptop, there is not much, if any thing, that you can do about upgrading it's video card.
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Class 1
High End Graphics Cards -
These cards are compareable to enthusiasm desktop graphics cards, like the 9800M GT. The cards have a similar core, as their desktop counterparts, but are clocked lower and often have less shader processors. Modern games like Age of Conan, Race Driver Grid, Call of Duty 4, Mass Effect, or Gothic 3 should run fluently with high details (Crysis should run in medium to high details).