I went back and forth about whether to start with a Kiev 4A or a Zorki 3M. At around $50-$75 it's not a big deal to buy one of each! I got intrigued with the notion that the Contax II was supposedly introduced as a more rugged pro type camera and the screw mount Leica was initially intended as an advanced amateur camera. Obviously a lot of pros thought otherwise. The tiny size of the Zorkis is attractive, but that crazy vertical metal shutter and the really wide rangefinder and the potential for adding some Zeiss lenses influenced me to try the Kiev first. The Zorkis have a definite advantage in terms of lens choices. Have you done the whole rangefinder alignment/lens registration thing? Seems to be worthwhile to get it all adjusted "just so" from what I'm reading.
How's that Kiev 60 working? I have a really pretty 6 x 9 Busch Pressman with an adapt-a-roll 620 film back that was going to be used for some MF landscapes, but it's not happening. Maybe a more portable MF rig is the ticket.