I'm looking to possibly buy either the 18-200 or 70-300 for my D80.. basically as a carry around lens for family stuff. I currently own a variety of lenses: 17-55, 10-20, 70-200VR, 90mm, etc. Of course my 70-200 lens sort of covers the range.. and is sharp as can be.. but is rather heavy and not something you want to carry around. So, do I go with the 18-200 for the wide action.. or get the 70-300 for the longer end of things. Basically family photos, vacation shots and a lens my wife would use all the time when she borrows the camera. I currently keep the 17-55 on and use that as the general lens. I know the quality of either lens won't approach the 17-55 or 70-200 across the range.. but which one would be the best choice in terms of IQ, overall flexiblity and heaviness/carryability.? They both seem well respected at around f8 or so... Thx for the help!