I like my D700. I also have a D2Hs with 100% finder. I find that I can go between the two on a shoot and do not have any issues with the D700 finder. I find the dust "removal" system on the D700 to be far more valuable than the 95% VF coverage. My D2Hs requires a bit more attention to the sensor than my D700. I believe the D3 is lacking that feature.
I think you will be very happy with the D700.
Now of course you will have to personalize it with some FX glass. The FX equivalent of your 17-55mm f/2.8 AFS DX would be your second of the three kings. I'm using the 24-120mm f/4 and it's my go to general purpose lens. With VR and the highISO capability of the D700, I think it's a good match.
Roger It's still, ISO, aperture and shutter-speed, right?