In addition I’d like to point you to my supplier: http://www.jmbullion.com
I pretty much guarantee the best prices (aside from unique supply opportunities) because I looked long and hard for them. Free shipping. A little bit slow on orders depending on how you order, but I have 5 orders or so with them and never had a problem. Make darn sure you read their payment policies though! They deal with a lot of fraudulent purchase attempts, so their rules are a little rough.
A+ company and I will continue to exclusively purchase from them.