Best Buy: Alienware X51 Desktop Intel Core i7 8GB Memory 1TB Hard Drive AX51R2-5722BK
Dell Alienware X51 AX51R2-1438BK Desktop PC with Intel Core i3-4150 Processor, 6GB Memory, 1TB Hard Drive and Windows 8.1 (Monitor Not Included) - Walmart.com
Review: Alienware Andromeda X51 | WIRED
Alienware X51-R2 Review | PCMag
Alienware Releases The X51, A $699 Small Form Factor PC That Looks Like A Gaming Console | TechCrunch