Wireless Cards

(This would probably be better off in the "networking" forum)

I would suggest anything based on the Prism chipsets - to get those to work you only need to get the appropriate firmware from prism54, and save it to your firmware directory/directories. There seem to be two main Prism chipsets that commonly occur - Prism 2/2.5/3 and Prism GT. The first only supports 802.11b (so is limited in speed - I think goes up to 11mb/s), while Prism GT goes up to 802.11g (up to 54mb/s).
As to which cards use Prism, you can look at linux-wlan.org, but this is rather out of date. I've posed a question asking whether anyone can give an updated list/sources to buy appropriate cards.

Hope this helps
Toodle-oo
Giles