ITShootOut.com are reviewing two 'liquid metal' coolers from Danish company Danamics, comparing them to water cooling solutions from Corsair and CoolIT, and to Thermalright's IFX-14 heat sink. A quote from the article:

Danamics assures us that Cyberdyne Systems had no part in the liquid metal technology used in the LMX, but the Sodium Potassium Alloy used within the cooler is still pretty exciting stuff. As you’d expect the liquid metal is extremely effective at transferring heat, and unlike water doesn’t require any moving parts to circulate. We compare it today to the Corsair H50, the CoolIT Domino and Thermalright's IFX-14 heat sink.

>> Danamics LMX and LMX Superleggera Liquid Metal CPU Cooler Review