I would try Craigslist personally! I have had more luck getting higher prices from Craigslist than any where else. Hell, I sold my wife's DS a month before Christmas with 4 crappy games that were all over a year old for $150. A new DS is only 129, and it's not like they were hard to come by or anything. Post it for 350, someone will offer you 300, and you can seem like an accomodating guy by accepting!
