Nikon also has the Em, FG, and Fg20 that directly competes with the other compact SLR's. They are OK but they have a clunky feel compared to the others.
I would reccomend a Nikon FE/FM series if you want to go that route as they are fabulous cameras and the Nikon system is superb and widely available. They are not quite as small but they make up for it.
Cannon FD is another alternative as an inexpensive system but they never made a small camera in this catagory.
Maybe someone else can chime in about Minolta.