CuteCanonCapture Snaps Photographs via USB – Digital Cameras – Lifehacker
I’n not sure that this does anything that can’t be done by the software that comes with your camera but if you’re a Canon shooter, you might want to take a look.
Windows only: Free Windows application CuteCanonCapture turns your computer into a remote trigger for your Canon digital camera.
Provided you’ve got a supported Canon camera (see below), you just plug your camera into your computer via USB, fire up CuteCanonCapture, and you can snap pictures remotely, tweaking exposure, flash, focus, and zoom all from the comfort of your keyboard
Helderberg Photographic Society 