Plan on getting an Alienware shortly before 11-11-11
I hate to get in the flame line, but seriously, these people are right. From personal experience I can tell you that Alienware is a R.I.P.O.F.F. Please stay away at all cost. Their machines are WAY overpriced, and their customer service is SO bad. Alienware charged me $4,000+ for $1,200 worth of equipment and software. I paid them literally $2800 to put it all together and install software. My friends tried to tell me to build my own but I didn't listen. They even offered to build it for me, but I was svcked in because of the 'cool' alien head-style case. I mean, if the case is worth $2800 to you, then by all means. But otherwise don't go there. Be smart. You've been warned! Btw, the new machine I built two weeks ago (all parts from newegg) costs ~$950 including an ultra sleek Lian-li case. Parts are: Phenom II sixcore @3.2ghz, Sapphire Radeon 6950 2G, 8G Gskill Sniper ram, ASUS M4A89GTD mobo, 650W Corsair PSU, 650G seagate HDD, and sony cd/dvd burner. Even a little less aggressive setup than this would destroy Skyrim. I'd say with some research you could build a $750 system that would run all settings on high. If aesthetics are a big deal for you, do a little more research and get a case with a side panel window and some LED fans, sleeve and manage your cables properly and you will have a neat looking system that will rival ANY piece of crap that Alienware could put out. Hope this helps you change your mind about Alienware.
OP - I'll be playing on a desktop, specs mentioned above.