I lucked out, the first AutoTrader search I did turned this one up at a Toy dealer, 100k miles, one owner local, clean CarFax, timing belt/water pump replaced, new steering rack and CV boots. They hadn't even detailed it yet when we got to the lot on Monday morning. I paid full retail $19500, but they weren't letting it go for less that early into the advertising process, and there were only five other '05-'09 Limited V8's within 100 miles and none had a better history. You snooze, you lose. I would have liked an '08-'09 with the VSC Off button but buying used sometimes you can't get everything you want.
I've been checking AutoTrader since I bought it and there's just a small selection of V8's available at any one time.