It may not be as boldly styled as some of the gaming rigs from Alienware, but the MJ-12 7750 certainly packs some decent hardhare. CGNetworks take a look:
Fitted with some of the fastest, hottest hardware, the cooling is taken care of with a 92mm front and 120mm rear fans. Unlike what it says on the Alienware web site, the noise output is quite loud. This isn't a machine that would fit into a quiet office without an enclosure. With the advent of the very quiet Apple Dual-G5 Powermacs, I wonder why more manufacturers don't make quieter machines. The Alienware MJ-12 7750 includes a very-capable Enermax 660 watt power supply.
[The review]