Used to have an S500. This included PC software that allowed shooting and downloading the image immediately to the PC:
1. Hook the camera up with the USB cable.
2. Press <SPACE> on the PC to shoot a picture.
3. Get it downloaded immediately to PC, and not stored on the camera.
This was great for taking many photos (such as aerial photography)
Is this software possible to use with CHDK. Or is there a setup that allows the same operation?