I just got a press release that might be of interest to you folk who like to build your own.
Origin PC has just released a new liquid cooling system. From the press release:
QuoteWith the FROSTBYTE 360 ORIGIN's professional overclocking teams are reaching speeds up to 5.2GHz allowing them to routinely set new benchmark records and stay on top of the competition. Featuring silent pumps, a high efficiency triple 120mm radiator, and zero maintenance, the FROSTBYTE 360 liquid cooling system allows for extreme overclocking in a more affordable solution. The award winning ORIGIN PC GENESIS configured with the FROSTBYTE 360 starts at $1599.
More here: http://www.originpc.com/