D600 new or D700 used
I loved the D700, what a Great camera. I've had my D600 for a couple of weeks, and it's gotten better and better as I've gotten used to the controls, which, for me, were different from the D700. The sensor that Nikon chose for the D600 is a great choice. I'm finding that it's really allowing me to crop a lot further than the D700. The detail I'm able to retain has been wonderful. And, I bit the Bullet and upgraded to CS6, so now i can use ACR for my NEF's which i prefer to use over NX2. Nikon have really made some great FX cameras ove the last few years. Hope you enjoy yours.