However I've been in and around the computing world for too long as I'm not big on brands. That said it matters what you want. If you get what you want, be happy, enjoy it.
Alienware Desktop: [Alienware Aurora R4 ALX]
Monitor : [Alienware OptX AW2310]
Keyboard
Alienware TactX Keyboard]
Mouse: [Alienware TactX Mouse]
my gaming setup os 100% Alienware atm!
http://i59.tinypic.com/51rnk5.jpg
http://i60.tinypic.com/vz8q43.jpg
http://i59.tinypic.com/34e6amb.jpg
http://i61.tinypic.com/1zg6t82.jpg
i wanted a complete AW branded system from a lot of time!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic