A friend of mine over at Real World Benchmarks has one of the first sets of the new Danger Den 7950 GTX water blocks. The set you see in these pics are the actual prototype blocks paired up with a sweet computer.
You can see from the images that the blocks cool both GPUs on each card and use a really cool pass through type connector to allow cooling of two cards when in quad SLI mode.The blocks also cool the RAM on the cards so you don’t have to worry about RAM overheating. When the blocks go on sale they will be $199 per card. I hear the blocks are supposed to go on sale this weekend. Buy your own NVIDIA graphics cards here.