Whatever happened to the adhunter site? I used to enjoy going there to search national craigslist ads. Did it fade away after craigslist began charging for ads?
There's a new-ish website called AutoTempest, which is what I mainly use to find the cars I post here. It searches eBay, Autotrader, CarSoup, etc, and then Craigslist, you can set the mile range and have it auto load all the different Craigslist pages, takes about 20 secs to load 50ish tabs on my MacBook.
oh and you can search all of craigslist in Canada and Mexico too, dunno if Searchtempest allowed that...