I've been using one F80 with MB-16 and its a very confortable/nice combo with any lens (my biggest one is th 75-300). The best photos i have of my daughter were taken with that camera. Didn't know about the SB-50X performance with the pop-up flash. It works only with that flash, or with others too? I might look for an used one.
Nikonians!!! My best investment made after my camera!!!