I went Nikon after an AE1program kept letting me down.
f60, f90x, D70, F2, F, Nikkormat FTn, FT2,FT3, F100, FM2n, D700, F4s, F3.
I'm picking up another F100 tomorrow for my film stuff as I just can't focus anymore. I wish I hadn't sold my original one now! So frustrating as I really like using the old manual focus Nikons but now they will become dust collectors.
I will look out for a reasonable F6 but for now it's D700 and F100 in the bag.