Playdough - I have some wrist problems myself ( carpal tunnel) which come and go but one of the things I always do when I'm out riding is to keep an eye on my grip.

When I'm out on a ride every so often I release my grip and wiggle my fingers up and down, like playing the piano - just to keep everything loose and stop tension building up in my hand and wrist. It's also worth doing the same thing with your shoulders. I too suffer with minor neck /shoulder problems mainly brought on by using a mouse all day everyday! Just give them a quick shake or shrugg every so often to keep everything nice and relaxed.

Also, padded gloves and extra padding on the bars are a good idea, but at the same time make sure it's not too thick or bulky, as you 'll only end up putting extra pressure on the hands trying to stretching round all the padding. I'd go for quality rather than quantity of padding.

As for snobby bike shops - they're can be pretty offputting, but at the end of the day it's you who's the customer. It's you who chooses to go into their shop and part with your money and if they're too snobby to not want your custom, then it's their loss!

Let us know how you get on.