Mine just broke at 24004 miles - about 2 inches from the bottom. I ordered one from my dealer last Thursday and it came in today (Wednesday). Not too shabby considering Triumph was supposed to be closed on Monday for the presentation of the '08 models to the dealers. Bike Bandit and the dealer price is usually about the same.
I'd be a little leery of some quick fitzall auto parts cable. The drive on the front hub is a little cheesy and if it goes bad the shrapnel can migrate into the front wheel bearings.
Just my opinion. Your results may vary.