@ferrellsl: Are those C-64's in a joystick actually full C-64's? I thought they just had the game ROMs in them, like the ones for Atari 2600, etc.....?
@original poster: If you can find a c-64 system in your area, that's the best way to go. My last find: 2 C-128 systems, with 2 1541 and 1 1571 drives, monitor, software, lightpen, mouse, etc. for $40.00 US at a Slavation Army Thrift Store.....
As for running older A500 software, be aware that the more recent version of Amiga OS you run the more problems you may have with games. (I run OS3.9, had much trouble with certain games) WHDLoad can help much in this regard.