Hi all My first post here so, be gentle. I'm fortunate to have been given (in that usual "you're into photography - do you want this?" way) a Zeiss 50mm f/2.8 lens in M42 mount. For the past few months I've been toying with the idea of buying an Olympus OM to play around with but now I'm wondering about something with an M42 thread to it. I like the look of a Pentax Spotmatic but I've little (read as "no") experience with these cameras. Does anyone have any recommendations or tips on what to buy and what to avoid?