HSF's not cool enough for you? How about a liquid cooled bad boy named the Swiftech MCW50-T 80 Watt Thermoelectric GPU Peltier.

This thing looks like an indoor plumbing connection, but liquid cools your CPU for the most demanding OC'ing applications. Heres a rip:

"By making some of the best computer cooling products in the world, Swiftech has almost single handedly revolutionized the computer thermal world. With the advent of the MC462 heatsink and later a revision, Swiftech almost forced many other cooling companies to somewhat copy their design, quality and multiple application arrangements. Today, Swiftech is now one of the world leaders in not only air cooled products, but also liquid and thermoelectric cooled devices."