Only bad thing about Alienware is the price markup on Dells premium brand.
I have:
CPU - i7-2700k (Corsair H80i Water cooler)
MOBO - Gigabyte Z77X-UD3H
Disk Drives - OCZ 4 Vertex 256GB SSD & Seagate Barricuda 7200rpm 1TB HDD
Ram - G.Skill Ripjaw 16GB DDR3 1600
Vid Card - EVGA GTX Titan Superclocked
Case - Coolermaster Storm Sniper
PSU - Rosewill 1000w Bronze
Keyboard - Logitech K800
Mouse - Razer DeathAdder
Then I have a Creative Fatal1ty gaming headset. I had the Sandbridge Extreme but I figure by the time I'll need anything over a quad core processor they'll have much better options out so I returned it and got the 2700k. I'm not a fan of Ivy Bridge/Haswell because of the issues with higher temps because they skimped and used some cheap thermal paste which can be fixed easily but if I'm not mistaken that can void the warranty.