With DSLR's the idea is that your pc and your photo processing software are able to do a better job of processing the image than what's built into your camera. So, the theory is that you should shoot RAW or JPEG with all of the settings at 0 and process your shots on your pc to produce a final result which is better, or just more to your own personal taste, than a shot processed in camera.
-------------------- Alan's defence lawyer claimed that "Booze played no part in his typo's."