I am about to buy a good copy of the first AFS 400 2.8D, but would appreciate advice from those of you that have experience with this lens (does it "manage" well against the VR version - not F)? Will be used with the D4s, mostly BIF/wildlife.
Being a big investment I have three major draw backs regarding that model.
No VR, it's the major, and you pretend to use it on BIF so, either you'll have a perfect support, meaning a hefty tripod and head, or expect some disapointment here. And then comes the second, that model has a tall foot, that you have to send out and buy a dedicated one, my recommendation goes to closer the barrel the better. In third comes the motor lifespan... you'll never know, and when it goes out, as Bjorn said, what a heavy and big MF lens you got, not mentioning the loss in resale value.
Please note that these points have nothing to do with its inherent IQ, that is good, but I wouldn't recommend buying it. Better to spare some more and look for the VR model, which will start to appear as people upgrades to the FL one.