1. Tokina 11-16mm f/2.8 ($570) 2. 1.5x=more distance 3. 6 fps or 8 fps with mb-d10
If you really need noise control then go for the D700. For those of you who are switching because you want wider lenses the new Tokina 11-16mm should be to your liking. It's almost half the price of Nikon's 12-24, is two stops faster, and is also made for DX formats. Ken Rockwell will tell you more reasons why it's better.
There is a somewhat important range missing if one goes with the 11-16mm. If you were to go for the 17-35mm on a DX you'd be missing a true 17-35mm range. However if you had the Tokina, 17-35mm, 35-70mm, and 70-200mm, you'd be set. If you must have the DX range of 17-35mm you could go with the 18-200mm, but I don't see it being that important. You can always shoot a little wide and crop. New glass is more expensive and not that much better.
As a D300 user I'll be going with the Tokina, 17-35mm, my 35-70mm, and 70-200. I have a 50mm f/1.4, 105mm macro, and that seems to fit all ranges necessary for any event photography I want to do. I'll probably get the 35mm f/2 for a true 50mm as well. As a college student I don't have enough for the D700 anyways. $3000 for the body would get me the lenses I don't have that I just listed. We all know pro glass is more important than a pro body in terms of priorities. Just my two cents.