You can also get Bits and DigiQ (Or at least just DigiQ) from a Japanese computer store in San Jose called 'User's Side'. It's next door to a small Japanese supermarket off of .. dang, forgot the name.
Also, there's a Users's Side in San Francisco at Kintesu mall in Japantown... maybe check there? DigiQ cost me 45 bucks at User's Side in San Jose about 8 months ago.