I know this isn't a discussion forum, but I wanted to point out that the DBI use significantly different drivers, placed into the GMP housings, which gives them a much bassier, less studio-oriented sound.
I don't know if anyone who was part of the most recent DBI buying spree is going to sell theirs, though, because it's a pretty rare and awesome deal.
Word has it that you can buy them directly from the manufacturer, but they aren't cheap. Also, most feel that the 700 is better sounding than the 705...