This may sound like a pretty dumb question but here it goes. I am looking into getting the Nikon D80, however it seems like this camera is geared towards mainly the auto focus types. I can see how this is useful for weddings and such, but what if I want to be fully manual. I have an old pentax from the 70s and on those lenses you can focus and set aperture and in some cases select zoom. When I looked at the D80 at the photo store, it seemed like it was always in focus and that the lens would only zoom, not focus. (it was the 18-70 lens). Am I just dumb or it there a better camera for me if that is the type of control I'd like to have?