My choice for a plinker would be the S&W. I bought one several years ago ($425) and love it. The only problem you may have is finding one and getting it for a decent price. Like everything else "black", they have disappeared from the shelves and jumped up in price since the Newtown shooting. I've seen a few on the web selling for $600. You could get them for $400-$450 a few months ago and they where sold at almost all gun shops and sporting goods stores.
"... Americans... we want a safe home, to keep the money we make and shoot bad guys." -- Denny Crane