Hello, I'm new here. I took up photography as a hobby about a year and a half ago with my D5100. I have the 18-55 kit lens and the 55-300 that was bundled in some kits of it. It has been a great camera, but I feel that I'm starting to outgrow it. I was waiting for the D7100 to be released, and now that it is out, I feel that I'm faced with a a hard choice. I will be taking a difficult digital art class next year and for the years to come, and I will also be taking a trip to Italy in the summer. I'm torn between the D7100, and the D600. My fear is that I will outgrow the 7100 and I'll want to move into the FX cameras after I get it. I would also be buying the 18-105 lens for my D5100 if I don't make a decision before I go to Italy. What do you guys think?