>I am just looking for fellow Nikonian opinions...If cost was >not the factor...for someone who owns the D3S and D700 would >you recommend upgrading to the D4 or the D800? (Probably would >sell my D700)
I think this is greatly dependent on why you own the the D3s and D700. I have a lot of bodies, but no D700 as the camera didn't fill any need for me.
I shoot two primary types of work. Sports and Portrait/glamour. My D3s cameras do the sports things very well, and will get upgrade to the D4 sometime before Christmas. I had been using my D7000 for the other work as I wanted the megapixels. But the D7000 has been somewhat unreliable for me, and I just don't have time for that.
For me, the D800 will replace a LARGE part of what I am shooting now. It will give me MUCH better retouching possibilities in portraits and glamour, give me large print ability in daytime sports, or give me the ability to crop in daytime sports. Sadly, the D800 cannot be used for me for indoor volleyball. That's a place I'd really like to have it. But I am at ISO 6400 in there just to get 1/500 of a second at F2.8, and I really want 1/1000. So the D4 will be the ticket.
But the D800 isn't right for everyone. That's ok. I still use my D2h, and D2x for certain shoots. Those are "right" sometimes for the job. The D7000 is "right" for me for some shoots.. especially when I want the DX crop but I want more megapixels than my D2x.