Hey Krow, first-time poster but a long-time reader.
I was an exchange student in Osaka a few years ago and got into a discussion with a couple of friends of mine about what happened to a place we used to visit. It's called the Hakoniwa Taisen, and it's this weird pay-as-you-go LAN party in Nippombashi (down the Sakaisuji subway line... if you haven't been around Osaka yet, you'd take the Hankyu line from Kawaramachi to get there, and change at Awaji [I think]).
My friend Adam made a fan site for this place at http://www.geocities.com/bill_cosby
but none of us have any clue if it's still there or not. So, like, if you get a chance, can you check it out and see if it's still there?
That part of Osaka has some of the most happenin' gadget stores you'll ever see in your life... the sort of places where you can get a PC the size of a comic book dirt-cheap. If you haven't been around there, I highly recommend it.
Peace... enjoy Japan!