There is NOTHING SPECIAL about an Alienware computer. NOTHING!!!!!!
It isn't like they're making computers out of gold, platinum, and diamonds, you know.
They're just getting a top-flight motherboard (usually ASUS), a good CPU with a good cooler, a good hard drive, a good, name-brand video card, a good case, and good RAM, and then getting a trained monkey to screw it all together, and they then cross their fingers that you won't find a problem with the workmanship.
And they charge you two to three times the cost of you doing it yourself by buying all the parts at Newegg.com. Seriously.
Alienware computers are for people with more money than brains. 'Nuff said.
-Llama