I'm not sure what is the issue with using manual mode on a d40/d60 etc. You turn the wheel for the shutter speed and then press the +/- button and turn the wheel for aperture. Seems easy enough to me. You see the settings on a large LCD screen instead of a small display. I don't think this gives you "limited control". I reassigned my Fn button to change ISO with the wheel also. Aperture and shutter priority are even easier. Just turn the wheel.