You could also try Craigslist. I've tried Craigslist before but some of the buyers are kind of stingy. They only want to pay $100 for something that is worth so much more on ebay. I prefer ioffer to ebay just because they have no fees, but there are a lot of fakes on ioffer which could potentially deter a buyer from your nice expensive authentic bag to the matching fake. I'm very careful when buying from any site because a lot of sellers buy from the outlet and list their purses for way more than what they bought them for. I don't want to line the packets of these people so I usually look for gently used bags for sellers without 3000+ feedback.
That is just my $.02