For the uninitiated, here's a little lesson: folks who collect coins and paper money that were legal tender are numismatists; those who collect non-legal tender (medals, tokens, etc) are called exonumists and people who collect or study paper money are notaphilists. Okay, now that that's covered and everyone's on the same page, here's where to get all that cool stuff — GovMint.com. It's one of the biggest rare coin retailers in the country, specializing in unique U.S. coins, paper money, ancient currencies and foreign coins. They also stock gorgeous proof sets (don't try to use them unless trying to meet an F.B.I. agent), collector's books and accessories to keep these collector's items in mint condition.