Sample pix of co-workers from the second day I owned the camera:
All three were taken in full auto mode, captured as both a jpg and a RAW file, with the RAW file adjusted in Adobe Camera Raw and saved to another jpg in Photoshop, set to quality = 11 (where max = 12)
Here are the full-size results of the ACR process:
Steve:
auto mode, f5.6, 1/60, ISO400, 17-85mm lens @ 66 mm, pop-up flash,
Hostess:
f/4, 1/60, ISO400, 17-65mm lens @ 17mm, Canon 480EX II flash
Van,
f/5, 1/60, ISO400, 17-65mm lens @ 17mm, Canon 480EX II flash
Here are comparisons of the atuomatic jpg creation in the camera and what I chose in ACR.
NOTE: I'm posting these as illustrations of my first tries, not as a claim that my adjusted versions are better
Steve in Camera 
Steve via RAW and ACR 
Hostess in Camera 
Hostess via RAW and ACR 
van in Camera 
van via RAW and ACR 