What camera to upgrade to (Nikon)

[Dale_tem]

I currently have a Nikon D3100 with the following lenses:

Sigma 10-20mm
Sigma17-70mm
Sigma 70-200mm f/2.8
Sigma 50-500mm
Nikon 35mm f/1.8

I was looking at the D7000 as my next upgrade, but I have just realised that the 70-200mm and 50-500mm are full frame lenses (I think the rest are all dx lenses) so this opens up the world of upgrades to Nikon full frame cameras.

The limitations I find with the d3100 are focusing points and focusing in low light. It is pretty good for all the basic adjustments, exp. compensation, iso etc. (I generally use shutter or aperture priority modes), but changing focus mode or focus type takes a bit longer so I don't really play with this area.

So I was wondering what suggestions people have, I've splashed out on lenses recently so don't want too spend loads on body at the moment, especially as half my lenses will need selling and upgrading. Budget of £750

Thanks in advance

 

[amfoto]

New - D7000 ,,, price has dropped

D700 - if u trust ebay, deals can be had

 

[Nguss]

Your lenses may be full frame and seem to cover a lot of the same focal length too, but ultimately do you want or need full frame or are you considering full frame just because the lenses are full frame ones? If there is no pressing need for a FF camera, then it might be worth considering sticking with the DX format, which would also mean you could keep all the lenses.

I have heard the D7000 is a very capable camera, so if you dont need full frame it might be the next logical upgrade for now, and it also has a higher megapixel count than the D700 which is, however, still an excellent camera.