Sell all your dx glass and buy a 70-200. You'll find you don't use that camera much anymore. If you're using it for reach you will have fx glass on it anyways. I use two cameras a far amount. I used to use a 700 and a d90. I always kept the longer of the lens of the dx. For one that 14-24 is amazing way beyond it's sharpness and two as a general rule I tend to Print bigger the smaller the lens. I don't know what you have for glass for it, but the only thing I would keep is a travel lens. Thats where those light dx lens really pay off!