BFG Tech Nvidia GeForce 8800 Ultra 768 Water Cooled (yeah there's two if them!)
Each one of these cards weighs as much as a hard drive! They have 2 external power connectors.
The Water Blocks are by DangerDen. Solid copper. They take up one slot each which was a big selling point for me, I want to use the extra PCI Express slots and PCI Slots.