My teacher recently has given me an old Blue iMac G3... I am not sure what generation, but he said it stopped working one day out of the blue and he took the hard drive and just ditched it. I have another iMac G3 Lime tray-loading one, and was wondering: A) Is the Hard Drive in the lime iMac G3 compatible? B) Any ideas on whats wrong? C) Is there a way to connect a firewire cable from my MacBook to the iMac to start it up? Or how do I fix this? I am getting it on Friday, but I want to have a headstart quick.