Mail Order Japan is a Japanese shopping proxy (a service that buys items you can’t order yourself) that I’ve been using for 8 years. It’s run by an awesome guy named Azuma (what a sick name; I have verified this is his real name).
They have a live bidding system for Yahoo! Japan Auctions and you can send them a request for any other Japanese web shop and they will order it for you. The fees are the lowest I’ve ever seen for any shopping proxy.
If you have any questions about MOJ, or know any other cool shopping services, post it in the comments!