I have two very rugged M66 Taurus revolvers in .357 magnum, medium frame guns. One is nicked, 4", the other is a blued 3" older lockwork. I gave $197 for the 4" and $180 for the 3" at gun shows used and both are fantastic, uber accurate, strong guns and better designed/built than the M19 Smith I once had. The 4" gun is the later transfer bar lockwork and the trigger is noticeably smoother. That gun shoots 1" groups with .38 or .357 at 25 yards off a rest, most accurate medium frame gun I've ever owned and why, primarily, I kept it. It's not got the flat bottom forcing cone that is the weak link in K frames. It's tight, perfectly timed, and sweet shooting.
I've rid myself of a Security Six, a M19, and a Rossi, but kept the 4" M66 Taurus. Just use the revolver check out listed in the sticky above when you go looking and don't fear the Taurus. They are fine, strong, well built, reliable guns for a good bit less than the alternatives. I'll add that my M85SSUL, bought new 12 years ago, has been flawless through 6K plus rounds. It's got the best DA trigger I've ever had on an out of the box revolver, better than any Smith I've owned or tried that wasn't worked on and CERTAINLY better than any out of the box Ruger. Plus, much as I love my SP101, it rarely gets carried while the M85 often does. The SP101 is a brick and Ruger seems incapable of building a revolver that weighs less than a ton and a half. Good for shootabiliy in that SP101 with heavy loads, though. But, a good DA trigger does wonders for off hand accuracy and I had to add an aftermarket spring on the Ruger, not necessary with the Taurus..
www.taurusarmed.net is a good site.