I just found one pair in a bike shop and as they were the last ones they had and had been lying around for a while, they let me have them for a tenner.
But now I want some for the back! If you've got a an old used pair you don't want anymore I'll gladly take them off you, or if yuo know of a shop with a set, let me know...
I've always fancied a penny farthing. there's a guy in the UK who makes new ones for about a grand. A German guy is touring round Australia on one at the moment:
Pete, get back on topic, the guy was asking about brakes not penny farthings ;-) That looks awesome though, not sure how it would cope with Peak off road mind. Fercrissakes don't let Gary Fisher see it.
Anyway you can all stop frantically searching (you all were, weren't you?) as I found a pair of Fibrax cartridges in a little old bike shop. Yay! It was his last set as well.