Hello everyone, I just bought a Macintosh 512K for $5. The seller knew what it was and what some sell for, so I don't feel guilty. It's too late tonight to see if it works, so I can post more later. It's in great physical condition. It has a keyboard, but no mouse. He said it worked the last time he used it, but that was years ago. Even if it is dead, I'll keep it as a decoration. Two Questions: 1) Where is the best place to look for a mouse for it? 2) The battery in the back is corroded. Where can I find a replacement? Thanks everyone!