which usb wireless adapter should I get?

[toypiano]

I just bought a wireless router and would like to use a wireless usb adapter to connect to it. I am running Redhat 9.0 on a 2ghz pentium system. Which ones are supported in linux right now? I have been having trouble finding clear info I understand. On the companies websites there aren't linux drivers posted (3com, linksys, dlink), but some websites seem to say cryptically that they might be?

thanks

[hard candy]

usb driver status (http://www.linux-usb.org/devices.html)
See what devices are listed as working.