In reply to Runtothehills:
I had a scaphoid fracture years ago, in my right wrist (righthanded). The unfortunate truth is that they are very slow to heal (if they do heal, otherwise it's surgery), I was told to be very careful and my wrist was in plaster for 13 weeks. The bone healed naturally but the wrist has residual stiffness and reduced mobility. I really wouldn't start doing any weights, too risky, if you break it again you will be in deep s**t; I was told that a repeat fracture would have a much greater impact on wrist strength and mobility (the action of a wrist curl is likely to compress the scaphoid, a quick route to fracture). The medics said that physio wasn'the necessary as everyday activities would rehabilitate and strenthen the joint.
How did I rehabilitate? Plaster removed on a Thursday, come Saturday morning I was on the crag, bad move, ended seconding severes Johnny Dawes style, single handed. Undeterred and despite wrist pain I was out the next day, worse mistake, one route done and luckily no damage done. After that I had a couple of months of no climbing, the wrist settled down and I returned to the rock at my normal leading grade. The only moves that gives me problems are mantleshelives where wrist flexibility can be an issue. There is an up side of things, painting and decorating lead to a stiff and sore wrist - a perfect excuse!
Hope things go well for you.