You'll like the '66 I suspect. Good solid guns that in spite of the internet fearmongering, will last you a long time.
I wouldn't hesitate to buy a used Tarus if I was just in the market for a 38/357. I'd check it out the same as I'd check out a Smith & Wesson or a Colt, and judge THAT gun. I'd pass on any that didn't pass muster, same as I've passed on Smith & Wesson, and Colts...and yes, Rugers too.
I have owned three Taurs revolvers and they worked just as well and anything else I've ever owned.
BTW. Just for future reference. If you or anyone else find yourself in this situation again, and you don't HAVE to have a .357, forget it and look for a .38. .357's almost always go for a premium.