#10. "RE: Confused: D700, D800 or wait for D600 ???" In response to In response to 0
If you shoot at high ISO settings, there is a real advantage using an FX body. Another attribute is the narrower DOF an FX body provides. Other than that, the IQ is more similar than different between the D300 (DX) and D700 (FX). The D7000 has a better sensor than the D300 making any perceived differences even smaller. Is your D7000 failing to meet your expectaions in some way? Good Luck and Enjoy your Nikons!