Check out reflexnotebooks.ca - you can typically get more performance and value from sager/clevo notebooks than others. For example I just ordered a 17" laptop from a different Sager reseller for $1600 - 2.3ghz quad core and 7970M (which just dominates pretty much any other consumer card except the 680M).
There are several other good resellers as well - malibal.com and xoticpc.com
General FAQ on the company and a buying guide -
Clevo Guide v3.0 - FAQ and Reseller Info ****READ BEFORE POSTING****
Other than them, ASUS is a good choice for sure.