As many of the others mentioned H&K P7. One that hasn't been mentioned would be the Benelli B76, don't think many would classify it a classic, they are kinda odd but I like that kind of stuff.
CDNN has S&W 5906 (used) for $299 (dealer price) and extra mags are not that expensive, plus its 100% Stainless. I have the exact 9mm line up you have, except I have the 92C.