I have been using computers for many years now and i'm starting to feel some pain, especially in my arm and shoulder. I'm using my mouse for approximately 4 hours a day, sometimes more. I do think that I might switch over to an ergonomic Rollermouse. I have tested some designs, and they're all convenient to use. But I haven't really used them a lot that would prove its significance.
Most of my important tasks go to Programming, web surfing and a lot of reading on the internet. So my question is, am I the right person to use a Rollermouse for these kind of purposes? Or should I stick to the mouse? I tried different mouses as well but didn't show good results.
What's your opinion about Rollermouses in general? Are they genuinely that convenient and good after all in the longer term? How do you deal with this kind of pain?