Film camera BODIES have very little value nowadays because few people will actually buy them. There are classics one should keep, like the fully manual f,f1,f2,f3,fm2, and the high end autofocus f90,f100,f4,f5,f6. Beyond those models, presyong addik lang ang makukuha mo diyan.
Old Nikon lenses are valuable (specially if they are clean and fungus-free) because most of them (even the manual ones) can still be used by todays Nikon DSLRs. But for that reason, I would advise you not to sell them. Use them instead if you stay with a Nikon system.
So my suggestion is to 1) sell (presyong addik) most of the film bodies except for the classics, 2) keep the lenses, and 3) save up for a new digital body.