Is there a ethernet card available for a Performa 550 and Performa 630CD? I have a 10/100 wired network, I still turn these on and use them for the kids and older games. I would like to have them networked with my other Macs. My setup is quite simple: cable modem>router/switch>eMac, G3/B/W and 8500/120. I am working on giving life to another 8500/120 right now. I have a 10/100 card for it and an old Apple OEM HD 1GB (IBM DPES-31080).