This is a pretty cool video showing cameras set up at the men's 100M dash at the olympics in Beijing.

.....For the men's 100m dash, there were close to 100 remote cameras set up, all focused on the same thing: the finish line. Photographer Vincent Laforet was there, and he made this amazing video showing the sheer insanity of hundreds of thousands of dollars worth of camera equipment all working to capture one single moment, along with examples of some of the better results. [Vincent Laforet]

http://gizmodo.com/5045336/100-remotely+controlled-cameras-all-gunning-to-capture-the-same-moment