I started carrying 5-inch Smith & Wessons in 1974, when I first entered law enforcement in Georgia. Back then, the only factory 5-inch guns that were even remotely available were the Model 27s, and I still have my first one. I can't even remember who made the duty leather for it, at the time, but it wasn't too heavy on the hip all day long (although I did drive a patrol car in those days). I have a regular blued Model 29 Classic 5-inch, and I've carried it in a Price Western Leather (PWL of UK) thumb-break, strong-side, hip holster. This holster also covers the trigger guard. After picking up my Model 329PD 4-inch, though, I find myself spoiled by the light "packing" weight. Sure, the 329 isn't near as much fun to shoot, but I always have it with me in bear country. It's hard to go wrong with the 5-inch guns, though. They offer a nice sight radius, and they're still compact enough for hip carry.
Good shooting,
Will