ok... Is Sager better than Alienware? That's a personal preference... do you like paying $$$$$ more for a comparable system for it to have a paint job and glowing alien eyes?! That's what you need to ask yourself..
Second, the difference is, no glowing alien eyes, and no upgradeable graphics in the sagers (not directly at least like alienware claims) but keep in mind AGP is starting to phase out, so the current Area 51 systems will not have much for future video upgrades.....
Sagers are great systems, the reason they can be had so reasonably priced is due to them not being a "name brand" that goes through advertising, marketing, and all the wonderous things that jack the prices of technology up!
Best place to order? Favorable reccomendation on these forums will be www.pctorque.com
PCtorque is the company that hosts and supplies these forums!
check them out.... Lots of cool systems there, right now the hot one is the 3790... Wide Screen, Dothan, Radeon 9700 128mb... for about your price range!!