I'll give my +1 to the kneeling chairs as well. They *force* you to sit upright and with good posture, but its not something you even think about while sitting in it. Also, you have a lot more mobility with a kneeling chair IMO because you're feet are right underneath you and its easier to move around. Decent ones run about $75 - $100 US (Do *not* get the OfficeMax $35 dollar special), but its well worth it to not have an aching back at the end of the day :) .djc. Hassan Schroeder wrote: > 2) try the backless kneeling "chairs" (no reference, but I saw one > in a store a few days ago so they still make 'em); they seem > comfortable but I've never used one for any length of time, > being happy with option 1 ... > > These work with standard height desks, though, so you can > alternate with a standard chair until your back muscles get > used to supporting your own body weight (what a concept!).