Perhaps not. Read this post by a Newsweek photographer covering the Olympics. In the post, he laments the non-performance of his top of the line Canon gear. I guess there
isn't a perfect answer, in spite of the money spent.
Visions of China: A 2008 Olympics Picture Blog
It's also an interesting blog overall. It was fun to read about their experiences as roaming photographers, and look at some of their shots.