Thanks for that I've actually been to the Bitter End as well, got the polo shirt to prove it, and Biras Creek (to go OT slightly).
I was thinking of bunging something like one of
these which someone has just suggested off-line to me, then it wouldn't just be one machine that can access the signal. Also as my netbook runs on Linux I don't have to try an get it to work with a USB adapter. I do own the one you suggested but it's branded Edimax, and does not want to work with the aforementioned netbook.