I don't do it much, but it is a lot of fun. I say give it a shot.
I don't know the details of your shoulder problems, but if it's something that might benefit from use, well, who knows.
And if fly fishing is too much, well you can allways just go fishing the 'regular' way.
If you're interested, I made a fly tying box that holds my fly making tools and materials and serves as a handy dandy workbench. I could take some pictures and post em... I find tying flys to be a pretty relaxing activity as well...
Programmer - An organism that turns coffee into software.
If all your friends are exactly like you, What an un-interesting life it must be.
"A door is what a dog is perpetually on the wrong side of" Ogden Nash