No one has mentioned the FWB65/80 (yet). A fine, accurate (45+ scores) pistol that can be bought, tatty cheaply. I sold one on here last year for approx £125 that while tatty was still an accurate shooter. Good condition ones, of course, will set you back more.

http://smg.photobucket.com/user/Airs...l?sort=6&o=125

HTH
Ian