I was looking for something else on eBay when I stumbled upon this: http://bit.ly/1ks5sI8 It claims to be an airport compatible PCI card and compatibility with a range of models including my 8600, listed in the description. Legit or not? Also, OSX only, or could this thing work off the bat with OS9 by just popping it in? Never heard of such a card for the 8600 before. I always thought wifi was a no go with pre airport/usb macs running OS9.