Is this for defense? If not, get a .22. Cheap to shoot, no recoil. The only bad thing about .22lr revolvers is, they often cost as much as their centerfire counterparts.
If it's for home defense, but not concealed carry, get a 4"-6" revolver. They're a heck of alot easier to shoot than a snub nose. .357mag's are nice because you can practice with .38special. There's nothing wrong with a dedicated .38, either. The recommended S&W model 10's are fantastic.
If you want one for concealed carry, a 2"-3" barrel is really the way to go. I love snub nose revolvers. I do, personally, feel that .357 is more trouble than it's worth in a 2"-3" barrel. I don't deny that it's more powerfull than a .38. I just prefer a .38.
Don't forget used. It takes alot to wear out a decent gun. A little abuse goes along way, though. But, this is usually easy to spot.
Smith & Wesson, Colt, Ruger, Taurus, High Standard, etc... Find one you like, HANDLE IT, if it's in your budget get it.
Try not to buy on impulse or under pressure. That ''amazing deal'' won't be the last one you'll see.
Once you pick a couple likely canidates, research them. Just remember, alot of ''internet ninjas'' have an ''ax to grind.'' Take bad reviews with a grain of salt. Unless something gets ONLY bad feedback. Normally I figure each good experience is worth 5-10 bad opinions. If you find something, you can always ask here on the THR, too.