I don't think that anyone has mentioned the Ruger New Bearcat revolver.
While these might seem a bit too small when you first pick one up, they really do grow on you.
The sights are fixed, but do provide a very good square blade and square notch sight picture and they are regulated to shoot to point of aim.
Pretty much all steel and quite attractive.
They are a lot like a Remington 1875 revolver.
And, they shoot just as accurately as a Single Six.
http://www.ruger.com/products/newBearcat/models.html