A friend of mine wanted to install an AirPort Card in his mother’s old iMac G3 so she could get wireless internet access. We checked on eBay and the going rate for an AirPort card was well over $130. Online stores weren’t any better with one place listing a card at $180! Great Zeus! This made me pretty mad knowing that an elderly lady couldn’t get wifi on her Mac for less than a hundred dollars. So, when I got home, I vented my anger by tearing apart a Lucent Wavelan Silver PC Card. After the guts of it were exposed, I tossed it into my iMac G4, rebooted, and BAM! The iMac acknowledged it as a native Apple AirPort Card. I haven’t installed it in her iMac G3 yet, but I’m very confident it will work. The great thing about this is, these cards can be had for less than $25 with shipping via eBay, so this solution even trumps the silly Sony Vaio PCWA-150S as the cheapest AirPort alternative I can find.