>Since you still have the F3 you can tell if your lenses are AI >compatible or not. The F3 can use both AI and non-AI lenses by >putting the AI meter coupling lever located at the 1 o'clock >position around the camera lens mount up or down. If your >lenses contact and move the lever when it's in the down >position the lens is AI. If the lens mount interferes with >the lever so it has to be moved out of the way by pushing the >little button next to the lever, it is non-AI and should not >be used on the D7000.
Well, it looks like I'm in luck! All of the old lenses are AI. I had forgotten about the meter coupling lever, which, if memory serves me correctly, an astute salesman once pointed out to me when I was shopping for lenses.
I'm less certain of the quality of the non-Nikon lenses, but they should be good to experiment with anyway. Thanks for your advice; it's been very helpful.