I found this one by chance in a second hand shop. For the princely sum of $5, I figured I couldn't go too far wrong
Tamron 135mm 1:2.8 (BBAR Multi C, 55mm dia filter thread) in reasonable condition
Thought I'd get a real world opinion from here before shelling out for an Adaptall adapter.
Were these any good? I have only had a quick play with this on my EPL1 (With the Tamron lens taped onto my nikon to m4/3 adaptor......a triumph of duct tape engineering) Sample shot below.