I see that Scott Kelby shot with his Nikon 18-200mm VR while he was in Italy on vacation. This lens gets some bad press in some snobby photographic circles. I might have thought that Scott was inside that circle, but apparently not. I have found this lens to be a great all-purpose lens. Great color, contrast, and sharpness. It has it's limitations. But once you know what they are you can work around them. For example, the little bit of distortion you get at the wide end can easily be fixed with PS3. It's just a great "walk around" lens. It's always on my D300 as the default lens. If I take my camera in the car with me and don't have room for any other lens (=I'm not wearing cargo shorts), this is the lens I take with me.
Oh, yeah, I shot the two images of the train below with this lens yesterday on the way home from dropping my son off at a party.