Welcome to the club... The M3 is all you'll need, unless you want to use WA lenses too frequently... I have mine (a single stroke) since 2000, used it quite a few times, although the size of the negative frustrates me (I get this strange feeling when I print the 35mil negs, like if I had to blow up pictures from post stamps). If I wasn't addicted to my Rolleiflex TLR, I am sure that I would buy a Mamiya RF in order to have the middle format advantage AND the rangefinder ease of use.