It is the Canon Powershot S2. It is a great camera in it's class.
I have heard that many professionals will shoot all day long, and when it is all over may have only a hand full that they save. I take lots, I mean lots of pictures when I am out. Many of the photos do not turn out all that well. I may frame up the same shot 2 or 3 times, trying different settings, hoping to get it right. Usually I end up with enough 'keepers' to make it worth while.