I am also worried about the fake trust issues.... those people selling at those prices.. would be suspect to say the least...
If that was possible, every Tom..Dick 'n Harry would be doing it. Make sure you using people there with VERY high trust ratings and begin with small amounts, to reduce your losses if they decide to turn bad and run.
It's a mine field out there....

I recently heard of this new site called
BitQuick, it looks like they're basically solving this problem. They seem to be a streamlined LocalBitcoins, without the possibility of being scammed.
It's an escrow service, so the business takes care of sending the BTC to the buyer and ensuring that there's no fraud. There's no trust ratings. What do you guys think?
If it becomes an established way of doing business I might consider using it, but if it's brand new I would not trust it.