Hi,
Ben pointed out to me the other day that what i thought was a seized rear caliper was actually a seized handbrake cable on the nearside rear caliper.
They are about £43 quid new for each side but I found this italian company that also supplies them. I just received the cable and it seems well built.
Anyway, these are about £18 per side + P&P so might be a good source for anyone wishing to replace these and wishing to buy new but not go down the dealer route.
I'll update over the next few weeks when i fit mine.
Oli
www.cofle.it