I have alot of revolvers, but one comes to mind as having the "crispest" trigger, & coincedentally the nicest double action trigger as well...
can you say "vintage S&W baby" ( early 1955 - 1957 Combat Magnum pre model 19 )
looks something like this...
more on this revolver here...
http://thefiringline.com/forums/show...58#post2517158
I'm sure it either has been tuned by the previous owner, or a pro, because I have alot with nice triggers, & nothing compares to this, I'd say it's as close to perfect as you can get...