D600 would be new.
Fx is an option.
I also have a 50mm 1.8g.
My son will be playing hockey this year (indoors). And he plays baseball and soccer during the summer outdoors. So, I like snapping pics of him. I also like close-up (macro) and portrait.
So this is what I'm thinking. D600 (probably never upgrade the camera again) with the 24-85 along with my 50mm, and wait a while to get a good "zoom".
Or keep what I have and buy a nice zoom, tamron 70-200mm 2.8 di vc usd and a nice macro, maybe the 105mm micro. These lenses and what I have would pretty much cover the whole spectrum from wide to zoom and macro.
I'm thinking the way to go would be to keep the D7000.
But again, your thoughts are always welcome.