Try BitMit.net, it's great!
Yes it is not bad and if the OP is really going to sell at 6%-12% plus shipping he should make a mint so to speak as most silver at least I have seen on there is priced at 20-25% over spot. BTW OP go for the escrow option when listing I won't purchase anything without it and I'm pretty sure others feel the same way.
Edit: Oh and there is always direct sales here people do it all the time. Most people when buying here want a picture of the item(s) being sold with your user name and the date written on piece of paper and of course the always popular and prudent escrow option.
