Hi Packin' Preacher:
Welcome to the flock, er, uh Forum. I'm surprised no one has mentioned it yet, but among many, the Model 60-7 is considered the finest version of the Model 60 line. It has the wider front sight blade, it's been heat treated to fire the +P .38 Special ammo, and it's built on a non-magnum frame. Some guys don't like to carry guns with the "Ladysmith" engraving on it, but that doesn't bother me a bit. I once bought a used Model 60-7 (non-Ladysmith version) at a good price and traded it to a fellow Forum member for a CZ-75B. While it was a very good trade, I do often regret the loss of the little Model 60-7 and hope to replace it one day.
By the way, I had Crimson Trace LG-405 laser grips on my Model 60-7 which my wife and I both enjoyed. If your wife doesn't like or want laser grips, the Hogue rubber grips are a good alternative, but makes the overall size of the handgun larger.
Best of luck,
Dave