I took a nice vacation down to Houston and brought my 12-24, 50, and 70-200 and found that it was WAY too strenuous on my back than I would have liked. For casual vacations with friends, I want to get a light, sharp, zoom. I don't have enough of a budget to get a 70-300mm VR AND a 16-85mm, although that would be ideal. My question is, for simplicity (1 lens!), it's between the 16-85 alone and the 18-200mm. For you casual vacation goers, do you use wide or telephoto more? Which would you recommend if you had the money, the 16-85, or the 18-200? I've been torn between this decision for days and have been going back and forth; I seem to be getting nowhere. And with MS's cashback, I might as well get one now for cheap. Thanks!