Nikon only -
any of these should work
Nikon D-SLR. I would recommend either the D70, D70s, or the D50.
Older lenses, while they still have the F-Mount, (meaning that they'll fit on the camera) may not allow automatic exposure. In other words, you'll have to set the f/stop and the shutter speed manually. (If I totally confused you, I'm sorry, but it takes more time than I have to explain further)
As an idea_hamster suggested, I would take it all down to your local camera shop and see what works. They should know what you need. Don't go buying stuff on the internet until you check it all out in person. (or at least I wouldn't) Good Luck!
you may want to post your question on the Nikon forums at dpreview.com
Edit: Canon / Nikon / Olympus / Pentax etc. are not compatible with each other.