I took the Canon 5D down to the Toronto Boatshow to photograph a wakeboard ( the athletes referred to it as wake skate ) demonstration on the indoor lake in the Ricoh center. The lights were not turned up fully, so this was shot at 160th at f2.8 and ISO 1600 with a 70-200 lens. The 5D shoots 3.9 frames per second, capturing the whole flight of the wake boarder nicely. Probably could have gone at a higher ISO and a faster shutter and still gotten useable images.
Stephen Weir has a write-up of this event at StephenWeir.com with more photos and information about the athletes.