Just joined APUG and this group (hooray for OM!).
I've had an OM-1n (black body) and 50mm f/1.8 since they first hit the shelves in Brisbane in 1979, and never stopped loving it. Then I added a Sigma 24mm f/2.8, which is a brilliant lens (couldn't afford the Zuiko f/2.8, but to be honest I don't miss it). My wife eventually acquired an OM-2SP, but I never liked it as much as she did (couldn't get used to the spot-metering system, and it chews batteries like there's no tomorrow!).
Recently I discovered the joys of the used market, so in the last year or so I have added another OM-1n body (chrome) and some additional Zuiko lenses - 135mm f/3.5, 200mm f/4, 75-150 f/4 zoom - all second-hand, in great condition, and at bargain prices (the zoom was £19, I jus couldn't pass it up!).
Confession time - I also have a Pentax Spotmatic (yes, the M42 screw-mount body) with Takumar 55mm f/2 and 135mm f/3.5 lenses, also used at stunningly low prices. Not only is this another great classic like the OM-1, but it has sentimental value for me as my fist proper SLR (not counting a short-lived Praktica clunker). It works perfectly, but I don't plan to use it a lot, promise!