Over the past couple of years I've converted myself to shooting the OM system like it's a rangefinder camera. What I've learned is that so many of the advantages of an M style rangefinder camera can be applied to the OM system as well.

My favorite combination is the OM-3Ti and 35/2.8 right now for shooting within the one to two meter distance. The camera and lens combination is held and shot just like a rangefinder.