Two D800s with grips. 16-35VR 24-120VR 70-200 F4 VR
Sigma 35 and 85 F1.4 Sigma 70-200mm F2.8 or Nikon 70-200 F4 (big dilemma for me even right now since I have Sigma 70-200 F2.8) Sigma 120-300 F2.8 OS, the newest one with cradle. Sigma 50-500mm OS Sigma 150mm macro OS F2.8 or 180 macro OS F2.8 Sigma 12-24 II for fun shots.
I have most of these lenses already now. Don't really care about crop factor cameras. Maybe get D3200 dedicated to macro as third camera.
I have a lot of Nikon gear going back to 1967 (!) ... Had my legacy lenses converted by John White so they still work fine on the latest bodies. Anyway, I would probably not change a whole lot. I would certainly get another D800. My backup body is the D7000 (and there's a D300 on the shelf somewhere too) but would probably kick in some more cash and go with D600 for that role as it is becoming obvious FX is what Nikon is promoting. I have the Sigma 150 - 500mm and find it excellent (must have got one of the good ones) but would consider the new Nikon 80-400mm pending a trial from the store.
My favorite lenses would stay: 24 - 70mm, 300mm F/2.8, 14-24mm, 105mm Micro, 85 mm "G", 70-200mm F/4, 70-300mm VR.
IOW I would abandon DX, not because I don't like it (it's excellent) but because I think Nikon is trying to ease away from the system and we are unlikely to see interesting new lenses. The D7100 looks fantastic for DX and we are now seeing sensors in that format with high pixel density *and* low noise (even the D7000 is excellent in this regard). I would feel very comfortable committing much more to DX but am apprehensive concerning Nikon's intentions.
There are two superb DX "only" lenses I would really miss - the 12-24mm and the 16-85mm. Thom Hogan sez the 12-24mm works on FX from 18mm upwards. It does not. It's extremely soft and distorted just outside the DX boundary and unacceptable even for casual photography on FX (while being fantastic for DX). Nikon labels it "DX" for a reason. For those two lenses alone I'd hope the thieves would overlook my D7000 Those lenses are real gems.
Good question. Makes you think about where you put your money.
The only thing I'd change is after using my D7100 now for a few weeks, I'd replace my D800 with the D800E. I think the removal of the AA filter on the D7100 was a master stroke by Nikon and a great example where less can give me more