I was browsing through the wireless network cards at Microcenter (93rd & Metcalf) and came across a "generic" (or at least "no brand name") wireless card for $19.99. The chipset is a RA2561T, the "AWI-926T" model name seems to indicate that it is an "Amigo" network card.
It does 802.11g and 802.11n, and when I got it home Ubuntu found it and used the RALink driver with no difficulty getting it to connect to my 802.11g wireless router. Cards using the RALink driver are among those recommended by the Free Software Foundation.
I thought I'd mention this in case anyone is looking for a cheap, Linux-compatible, FSF-recommended chipset wireless PCI card. It is one of the few boxes which isn't shrink-wrapped so you can verify the chipset for yourself (if you like).
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