I'll join the crowd echoing...S&W J-frame. Everyone seems to like the airweights, but I carry an all-steel one; I'm no powerlifter, and I don't even notice the weight. Stainless? Absolutely. Get an enclosed, shrouded or bobbed hammer, unless you anticipate cocking it and firing SA. .38 or .357...whichever you like. One important factor:
GET A SECURE ANKLE HOLSTER
Be careful, a lot of strap rigs WILL NOT WORK with a bobbed or enclosed/shrouded hammer...there is simply nothing for the strap to hold against. It might SEEM secure...but run a mile with it. See how secure it is. Opt instead for a tensioning rig. Galco makes a functional one for a decent price.
Also, if the stock grips show up too easily, you can go for lower-profile grips from hogue or pachmyer...just be prepared for the change in gun 'feel.'
Practice!
Mike
------------------
"A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." -Robert Heinlein