I've just launched
http://www.buybybitcoin.com for anybody who want to sell their stuff online. Bitcoin is the only payment method, although Litecoin is will be added soon. Opening a seller account gives you your own backend admin area, where you can upload product images, descriptions, set options and attributes, pricing etc. There's no fees for anything except making a sale which is a pretty small 2.5% The payment gateway is handled using the Coinbase api.
Feel free to sign up, upload and help get the bitcoin trading economy going.