ok, so these are some pretty cool ZZ machines for reasonable prices...
http://sfbay.craigslist.org/eby/hsh/3576059339.html - Fleetwood $60
http://sfbay.craigslist.org/eby/fuo/3594713343.html - Pfaff 230 in Art Deco Case $175 (kinda pricey)
http://sfbay.craigslist.org/sby/hsh/3590951774.html - Dressmaker ZZ $80