Ask Slashdot:Computing Comfort

Mike writes "Ok, here goes: Being a geek, I spend a lot of time on the computer. I'm a tall geek, around 6'4". That means the chairs I sit in while geeking are usually WAY too small, and I think it's starting to have adverse effects on my back. I'm not willing to give up computing, so...Who out there has advice on ways to reduce the pains associated with computing? I'm thinking perhaps a better-designed chair would help -- am I barking up the wrong tree here? "