I do use an Alienware, but its a laptop, which should be the only reason you should consider them. For a desktop system, I home built mine and here is its specs
EVGA 780i
Intel Q6600 Quad Core 2.4ghz
EVGA 8800GTS in SLI
4GB PC2-8500 Cruical Ballistic Tracer ram-running at 1066mhz
Creative Labs Xtremegamer soundcard
2 500GB Seagate Hard drives SATA
1 80GB Maxtor Hard drive IDE
Coolermaster 850 Real Power Pro(Plus 80) Power Supply
Antec 900 Gaming Case
This is my dual boxing system and the reason for the 3rd hard drive is due to running a 3rd account in Lotro. Lotro is very texture intensive and when running 2 directories off one hard drive it made for very sluggish video. Using this old drive I had fixed the problem.
I was able to put this together for under 2000 dollars in Dec 2007 and since that time it has served me well. For a unit from Alienware which when you pull the cover will have some maker like Asus you would pay twice what I paid and get the same thing I have. Really. I have a freind who bought a desktop system and that is what he found on the motherboard when he pulled the cover. Save yourself some dough and build your own. Plus there are many here if you run into issues who would be willing to offer advice.
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