The PZL P-24 would be neat. A more modern, more powerful version of the P-11, sometimes armed with cannon. The Greeks used it with success against Italian fighters and bombers, and the Romanians had success with it against Soviet bombers and as a ground attack plane.
Some good info about the Greek PZLs here:
http://greek-war-equipment.blogspot....1-pzl-p24.html and here:
http://imansolas.freeservers.com/Ace...0fighters.html