Camcorderinfo has posted an interesting article that talks about the wide variety of HD cameras being used to capture the 2008 Beijing Olympic games. They also briefly touch on the various custom camera rigs dreamed up by Garrett Brown, such as the DiveCam. For more details on that particular rig, check out this article in the Wall Street Journal. I absolutely love the fact that the DiveCam is so low-tech, and that they solved the above/below water exposure differences with ND gels. So simple, and yet so effective.