gdgt

Wait for the reviews. I would be concerned about low light/low noise performance for those dawn/dusk/night shots, but I'm sure you are all over those issues.

I too would be conflicted as the price difference amounts to the cost of a pretty good lens (or at least close to one). If it were me, I might prefer to invest in glass as Nikon is sure to release new and better bodies every few years. New and better lenses seem to be on much longer upgrade cycles.

That said, my wildest fantasy is a medium format sensor in a mirror-less "35mm" DSLR-sized body that can maybe even use existing "commodity" 35mm lenses. Pretty sure that the pros would revolt if Canon or Nikon did this; but if some outside player were to force their hand . . .

Nah! Who am I kidding!?!

I'd have my nose pressed against the glass looking at gear that I couldn't afford for the better part of a decade. Canon and NIkon would introduce new lens standards to go with these new camera bodies. The best of times for Canon and Nikon, and the worst of times for our wallets.

Good luck!

From what I have read, the D800/E is more of a hop then a leap from the D700. I have a D700 and I dont plan on upgrading to another DSLR, its am amazing camera and from what I've seen from the D800 specs, I see no reason to personally upgrade. Wireless isnt a make or break with these cameras as this can be achieved with wifi/gps modules and cards. I dont see the need to have it built in. Not to mention that wifi transferring is slow and require wifi to be available. I would just get an eye-fi card (if you get the D800E) and be done with it.

I do like the idea of the E, but again, is it worth the extra money to have it be slightly sharper in camera, when you can easily get the same results after you get home?

I personally think that if you are going to be doing mostly landscape shots, and you dont care about video, I would recommend a D700 and use the ton of money you save on the body to get yourself a whammy bammy lens. Either way, I do agree that its time to upgrade from the D300 :)
Full Frame is so much nicer, as is the ability to shoot low light!

Good luck with your upcoming purchase!

At this point, I would definitely wait for the reviews as you may not make the first batch of shipments.

As enero has mentioned, is video an important capability? It wasn't to me, and I opted for a D3s. It still has video capability, but not nearly the amount of flexibility that the D4 provides.

For landscape, the D800 is the logical choice, especially the monstrous 36MP sensor. Having high ISO night vision is probably not too important apart from astro-photography, but the D700 was more than capable in this regard.

What other things do you shoot, and how would you put the D4 wireless capabilities to use? I agree that the D4 is more practical, especially since you can still shoot landscapes, but if you don't need the speed then the $3000 premium is likely not justified.

If I were in your position, I would get a D700 (or D3s) and some quality glass if you don't already have it, in particular the 14-24/2.8.