Since buying a D40 for my wife, I have been surveying all AF-S Nikkor lenses to see what other choices there are. She likes the lightness of the 18-55 that came with it, but wants more reach. So what we seek is a "one-lens solution" that is light and compact and will autofocus on the D40. The 18-200VR would be ideal except for the weight. Those criteria led me to the 18-135, which I believe was introduced as a kit lens for the D80. Does anyone have experience with this lens they would care to share? How does the image quality compare to the 18-200VR? Thanks for responding.