Saw a pair of these yesterday...I didn't even ask to see them 'in person' - they were just sitting in the guncase. The polished stainless looked SO good next to everything else....
Now I can't seem to get them outta my head...
This is what I THINK they were - Ruger Vaquero SASS - in .357:
http://www.ruger.com/products/vaqueroSASS/models.html?r=y
I am currently fighting the urge to go back and look some more...