The posts above line out most of the stores in the area. In my experience it is hit or miss with S&W revolvers.
You'll hear grousing about some of the stores, Chuck's in particular, but I've gotten some good deals there. They tend to have some of the nicer stuff in the area, particularly shotguns. Occasionally they'll have a bunch of guns from an estate or divorce sale and some good deals can he had there. A few years ago I got a NIB Colt SAA with factory ivories for 1500 otd.
As far as the shows, very hit or miss, mostly miss, except for Harvey Broom from Fitzgerald. He always has some NICE Smiths. He's usually at the shows. Be prepared to pay him on the upper end of what the market is--I have not had luck getting him to move on his prices. But he definitely has the nicest and the most Smiths around. If you go to a show, you'll know who he is--he'll be the only guy there with a lot of NICE handguns, rifles and shotguns. Droolville.