A 661 Wrist Wrap Pro, as recommended by a couple of the gravity fiends at the LBS.
I've been given the OK to ride providing I'm 'sensible' (consultant's words, not mine
) with the warning that if I (re)break my scaphoid again then there
will be surgery and I
will end up rocking a titanium screw in my wrist. In reality, this probably means sticking to the turbo for a while plus the occasional ride to Thee Pubbe or the LBS.
ETA: Also a new chain and cassette for the Croix de Fer - as I suspected, the existing chain is completely mullered after 10 weeks in the shed with nothing in the way of TLC.