I picked up a Minolta Dynax 5. It's really tiny, about the same size as the Canon EOS 300V. But the build quality seems better. Alas, it didn't come with a lens (I hate kit zooms) so I can't say if it works, yet.
As I'll (try to) use the Bronica ETRSi exclusively for November, I may well wait with the purchase of a lens until December.