Edit: Found a few places to buy the DVD! Click here for a listing! You'll need something to translate though, if you can't read Japanese. :p
Edit #2: Found a link to the trailers for "Helen" if anyone is interested. Pick one based on your bandwidth: fast, medium, or slow.
Oh, someone actually created a community called permmembers for those of us silly enough to have purchased permanent LJ accounts, to mirror the official paidmembers group. I was informed about such by glowing_dragon, who replied to a very old comment of mine made to news. Go figure, hehe. Anyway, there's not much there yet, but then it is just starting.