Did you ever find an answer? I'm in the same boat. I just bought an old G3 Blue and White PowerMac to learn how to use macs. Expected I could find some wireless device rather than use the ethernet cord to the wireless router. If you or someone has an answer on how to get this type of MAC to become wireless, tell all! even listing a place to get the product is great. Mac Techs state you can't connect these models to a wireless system but I've seen sites that state otherwise (yet no explanation on how)