Sometimes when you hear someone say they need a "desktop replacement" they really mean it. Those are the people that grab an Alienware. It may weigh 12 pounds but hey, it has an entire desktop computer in there. The Alienware Area-51m 7700 sports a whopping four cooling fans which is probably the only way it can even run with all that power in such a small case. ExtremeTech has a full review of the "portable" behemoth with lots of photos. What is remarkable is the Alienware notebook blew their high-end desktop systems away in a lot of the benchmarks. Full details in the review. If you need the power and don’t mind a battery that lasts just over one hour per charge, then the Alienware might be just what you’re looking for. $2200 and up.