I forgot to mention that 16" screen would be acceptable, but a 17" would make my day. I'd like to run these games at high-medium.
And would love quite a bit of gigs 500 or so.
And it's a desktop replacement I suppose, considering mine is 6 years old now. Permaplugged.
You can have your 17" 1920x1080 screen with a good mobile GPU, a new Sandy Bridge quad CPU and still put a few hundred of your $2K budget back in your pocket. Sager NP8170 @ XoticPC $1409
Core i7-2630QM Sandy Bridge CPU, 4GB RAM, 500GB 7200rpm HDD, 17.3" 1920x1080 LCD and GTX 460 video card.
Choosing the GTX 470M graphics card will add $200 to the price.