Interested in the perspective of the "super users" what the real functional differences appear to be.

How would you use the two cameras differently?

What would you be able to capture on the III that simply isn't available in the II?

What are the moment to moment items when shooting that make the III worth the buy up from the II?

Be kind, I am old guy and still have scars from handling film and am blown away by the power that all these cameras have.

Mike