Exactly, if you want to see just what your camera does. use NX2 (presuming it will read the proprietary format of a D700--or would that require an upgrade to it? Hmmmm) and then compare the results with LR2 when it ships.
I'm shooting D200s and 300s now, but will be picking up a D700 as soon as the review dust settles and the price drops after the first 90 days or so.My experience has been that NX produces the best conversions of NEFs of anything out there--but until NX2 came out, it was so clunky and slow that I only used it on about 2-4 percent of my work. Now I am up to about 10% and climbing, as I establish a new workflow to accommodate it.
One thing NX does do, however slow, is first rate conversions and editing of NEFS. And the feature set of NX2 with its improved workspace choice is in my opinion better than LR2 beta (which is not fully fleshed out yet)--that is, if compare NX2 to the LR2 Develop module, NX2 is non destructive as well, given that you can save work back to NEF and open and change edits any number of times before using the file as a tif or jpeg.
Yes, you can achieve close to NX results with LR, but to do so can sometimes make for slow workflow as well. I will be interested to see how LR2 does myself--hopefully in a month or so :)
