what usb wlan card?

Hi all,
I happen to own an ibook running linux an airport extreme basestation
(says it does 802.11g). Now I also have an old k6-2, which I want to
connect to this basestation, but I hoped to get around putting 50m of
cable in the house. Since my PCI slots are rather full (and I doubt I get
a good connection since it's quite far to the basestation) I hoped there
would be any 802.11g capable usb lan connectors around that work with
linux. This seems to be a problem however.

A prism based card seemed to be best supported but now I read on these
softmac problems. And usb is not quite there yet it seems. However, I
don't mind testing/patching the code a bit, as long as I can get it
working within a few months. So, what kind of a card should I buy? Do the
usb cards have the same softmac problems as the other cards?

regards,

danny