Originally Posted by PhotoJim
You could just pick up a Nikon EM or FG and it would work as a second body with your Nikon lenses that you already own.
I was going to post exactly the same advice. The FG is a great body in a compact size. Very similar in size to the OM.
If you want small, look at the Pentax MX.
"People who say things won't work are a dime a dozen. People who figure out how to make things work are worth a fortune" - Dave Rat.