On my iMac G4 17" 800mhz I currently have a USB adapter for connecting to my wifi network. It works fine but it would be nice to have the extra USB port for my iSub, the other is connected to a printer. The USB adapter is 54mb/sec but the port is USB 1.0 so it's only 12mb/sec anyway. I know the airport cards are 802.11b but I'm guessing the speed would be the same, or pretty similar. Just seeing what you guys thought. Also, everytime I restart, I have to disconnect from my neighbor's router and connect to mine. Not that big of a deal but I might as well minimize any inconveniences. Should I stick with what I have? or shell out the $35 or so for an airport card from ebay? Thanks!