imported post
I like a standard "pancake" style holster. Galco has 'em off-the-rack for @$60. Also might want to look at Don Hume, Mitch Rosen, Bob Mernickle, and Wild Bill's. Just google the names to get the websites.
You will need a good stiff gunbelt for it to work ideally, as .41 Magnum said. Can't put enough emphasis on the belt part of the equation.
My favorite rig is from Bob Mernickle. Hell of a piece of work. I carry a Smith 340 in mine. Very comfortable, no shifting around, and good retention even w/out a thumb break.