Keep the shoulder muscles strong around it and you won't even notice it. Surgery isn't usually recommended, unless you're a quarterback, or for cosmetic reasons. You'll have a little bump of the clavicle that sticks up, but chicks dig that.
For rehab, light light weight (or elastic bands) when you have range of motion without pain. Front, side and back raises. Not sure how that will work with the broken wrists though.
I rode about a month after mine and that shoulder tired pretty quick, but it was back to semi-normal soon after that. EVS has a shoulder brace that seemed to help a little, but I think it's more for stablizing dislocations.
Definitely take care of the wrists. Chronic wrist problems can put a huge damper on riding.
I say keep riding if you want an endorsement, but I'm not telling your wife ;) Good luck.