I'm searching for the best way to carry my S&W 640 .357. I wouldn't be carrying it all the time, mostly when I go for a walk or to the store. I am looking for a holster that would be comfortable and conceal well. For this application I would be wearing an untucked shirt or jacket so pocket carry isn't needed. What types of holsters do you recommend and which brands? I've been searching the web and have become fairly well confused with all the variety out there. Thanks, Mike