Yes, nearly everyone I talk to for acupuncture, massage, physio and starting to say the same thing, my posture is probably taking a toll on me. So I do have the exercises and stretches I need to do but I need to take my breaks as well. I was contemplating getting this chair:
http://www.hermanmiller.com/CDA/SSA/Product/0,,a10-c440-p8,00.html