Here is a short piece on tattoos in Japan produced by National Geographic on Bing Videos. Description: A form of full-body tattooing is growing in popularity, but some claim it is an artistic expression belonging to "the gangsters of Japan."
Link to video:
There are some other short videos dealing with tattoos and body modification at the site as well.
For more information about tattoos in Japan, check out anthropologist Joy Hendry's chapter in the book Japan at Play (2002): http://books.google.com/books?id=EWc4dQjh-HUC&pg=PA22&dq=Joy+hendry+The+Japanese+tattoo&hl=en&ei=doyBTOToGILQccSk2aYL&sa=X&oi=book_result&ct=result&resnum=1&ved=0CCgQ6AEwAA#v=onepage&q&f=false