Great info so far! Thanks for the responses!
The Ms are beautiful cameras, and I was originally considering going that way, but I just love the mechanistic-feel of the IIIs. I've shot film with old Minoltas and Canons and, more recently, with a Mamiya C330... Looking for a stone-simple 35 kit that is small and capable. Don't need "quick" as I tend to go out shooting with --at most--2 lenses even with my digital kit. Those are most likely to be primes, so I'm used to moving my feet to get the shot.