>A D7000? Yes. I think all Nikon lenses can be used on the >D7000. There are some limitations with the old lenses. I don't >have enough knowledge about that to tell you more.
Not all. See the D7000 info on Nikon's site. The main limitation for non-AF lenses is that manual focus ones must be AI or AI-S. Old non-AI MF lenses lenses should be modified to AI to avoid possible damage to the lens mount. There are a few other, not very common, lenses that can't be used - again, check out the Nikon site for the details.