Another question - am I assuming I'll have to invest in some UV filters, the way I do with my SLR cameras? I've looked for those and some ND filters, and my, are they expensive (for filters)!
If you mean UV filters for "protection", get yourself the proper hood for the lens. If you need UV filters because you happen to live in an area where UV is very high and messes up the film then...well yes they are expensive.
Have/had Mamiya RB, Rollei 6003, Hasselblad, Nikonos, Canon EOS, Leica R, Fuji Instax...and some other stuff