I have practically the exact opposite views on chairs for office. I like a steno chair with no arms to get in the way. I lower it enough that my thighs are just touching the chair, so the weight of my legs is carried by my lower legs (that way the blood doesn't get cut off in my thighs). I make sure the small oval back part fits neatly into the small of my back. swestrup detests having to use my office chair. I'm not real fond of using his. ;)