want to buy laptop toplay the following game

Football Manager 2011 n 2012
Fifa 2012
Pro Soccer Evolution 2012
n probably need for speed

Budget: under 2000, option to increase another 500
Usage: entirely gaming, with some entertainment
Brand: prefer Asus, Acer or Dell
System: INTEL is better
Size: 15.6" or 14", more to 14"