I went on a Cube-binge a few years back, and upgraded my 450MHz model with a Dual-G4 running at (IIRC) 1.2GHz. Installed a stronger analog power board, mounted her in one of those larger custom see-through cases, maxed out the RAM, added a beefier AGP graphics board, along with bluetooth, AirPort, etc. etc. etc. Made a really awesome workstation for several years, though now it's getting a bit dusty in my garage. I should set her up as a server or something...

Congrats on finding the Cube! Now just try to resist the urge to keep upgrading.......

Huxley