Forget Mice. They _WILL_ give you carpal tunnel syndrome which is very painful.
I was getting early signs of CPT about 5 years ago and switched to one of these.
Think about it - you have been using a pen since about 5 years old - so using one of these puts no stress on your hand / wrist that you are not used to.
Also - no "double click" as you can programm the button on the side to be a double click when just pressed once.
This is THE best thing you can do to improve your computing comfort. Allow 2-3 days to get used to it and thank me later.
Only get Wacom - they are the best.
Also - for photoshop nothing compares.
