Thanks for your response. This is exactly the type of answer I was looking for.
As the origial poster perhaps I should clarify some things. Landscape photography is only one of the types of photography I enjoy. I'm also heavily into macro photography and when I get the chance wildlife photography (where I live there isn't much wildlife). I have been using Nikon cameras since the introduction of the F4 and have several lenses that I feel are more suited to the larger sensor in the D700 than that of the D200 I own. I have decided that for me I will buy a D700 and use those lenses rather than buy more lenses to use with the D200 (although I have bought a few DX lenses). My plan is to use D200 as my wildlife camera and the D700 for everything else.