I am wondering what USB Wi-Fi adapter/dongle I should get for my old Power Mac G4. I turned it into a media center with my HDTV and I want it to have an internet connection. Ethernet cabling: too much work, original AirPort card: too expensive + rare. I would like it to have solid Mac support, good reception, and good speed. What are my options and what are the pros/cons for each one? Thanks a lot! Edit: also, what Mac-compatible PCI Wi-Fi cards are out there?