All I can say is I'd like to sell where you guys buy!
I bought two Model 60s from pawn shops. One was a .38, the other .357. One was $230, the later $250. I bought a Model 649 from SOG for $259. I bought a Model 49 at a gun show for $200.
My recomendation, based on your criteria, would be a Smith 637 Airweight. Great shooter, +P rated, and solid as a rock. Smith has been selling a lot of these recently and has kept the price down on them. I picked up mine for $390. I carry this weapon far more than any other in my "arsenal."
I suggest the Smith & Wesson 640 J-Frame in stainless.
You want hammerless in concealed carry so it won't catch on your clothes.
The 640 will take magnum loads as well.
There are at least 5 snubbie used Smiths for $250 or less on just gunsamerica alone. This isn't that tough - get creative.
Check with RM Vivas and Son of NY. I bought two 4" M10s for $300 total - he likely has some snubs as well. In fact, he has an M60 listed for $250, and some 36s starting at $185: http://vivasandson.com/