Yeah, money orders are the thing to look for. They explain it in the scam thing. Somehow they gain interest on something er... other.
I have sold stuff on Craigslist before. And I've bought things. I think what I did was I limited my locations so much that it only showed up in Sacramento. Or something.
But I wouldn't want to sell off my stuff to any foreign country without seeing cash up front. Shipping alone can be expensive.
Kindly say, thanks but no thanks.
ETA: Everytime I've sold something, I've met the person in a public place... like a coffee shop or something. Or at work.