In preparation for the soon-to-arrive (?) Squeezebox, I need a wifi adapter for my Mac. Current Airport Extreme cards are not compatible with earlier models and the early Airport cards are not longer available. Ideally I'd need a USB adapter usable on both my Mac and a Windows laptop. I'll be using a Linksys WRT54GS router. Has anyone any experience of Apple-compatible USB adapters? Are they any good? I found this list on the Internet [URL]http://home.earthlink.net/~metaphyzx/Wireless.htm[/URL] and don't quite understand why, while the offer for PCMCIA and PCI adapters is huge, there are so few USB adapters on the market. Thanks in advance