I quite often carry a compact camera on days when a DSLR isn't practical, or if I simply don't want to lug much around with me. Often, it's my Q7, but sometimes I just use a little Canon Canon PowerShot A1200. For images taken in reasonable light and destined for the web, it's a perfectly capable camera... especially when shooting raw. "Raw?", I hear you ask... Yes, many Canon compact cameras - including my A1200 and your SD600 - can shoot raw using
CHDK, the "Canon Hack Development Kit". It requires no changes to the camera - just set up of an SD card with the necessary file(s). Raw images load into Darktable, RawTherapee and other programs with no problems, and it's amazing what you can do with them compared to the out-of-camera JPEGs...