Smith & Wesson's traditional metal frame DA autos (used) are abundant in this price range. Probably the epitome of these guns is the 5906, a "Third Generation" in all stainless steel. I am also very fond of the slim little 3913; this is a single-stack (8-round mag), but is just as reliable and if anything more accurate than the bigger guns. The slide-mounted safeties are not the easiest to operate (if you use them as safeties), but this is not insurmountable. They are also available in DAO.