Where can I buy used metal shipping containers in the United States to build a home with?

YouTube - Shipping Containers Recycled as Homes (http://www.youtube.com/watch?v=UvcUe_yPHdg&feature=related)

Try here:

Buyertrail - Find What You You're Looking For (http://rfi.buyerzone.com/2_gallery_1.jsp?rid=292508&cam=101607),