Speaking of iMac G3s-the last two I bought(only one of which worked) were local purchases. When the seller started unloading stuff from his car, he pulled out two Macally bases that were purpose-made for the iMac G3s. They have a floppy drive, 4-port USB hub, ADB port, and two RS-422 serial ports. They connect via a single USB cable, and also have a rotating platform that with "nubs" for the feet on a G3 to sit down into.
They're a really slick set up, and I'm using both of them.
They're a really slick set up, and I'm using both of them.