Im looking at a D40 to purchase w/ the 18-55mm kit lens. Right now I have a D70s with the 18-70mm kit lens. One of them is going to be mine and one will be my GFs as a birthday gift... I use mine a lot more and she would tinker around and use the camera less than me. Bottom line, I want the better camera for myself. Which would you rather have, the D40 or D70s?