For those of you not too finicky about the feel of the keypresses (they're a bit clicky), I'd recommend the "Floating Arms" split keyboard (they attach to each arm of your chair), available here and here. I'll second the lackluster reviews of the Aeron -- it's a good general purpose, one-size-almost-fits-all chair, but if you want that last 30% of comfort and ergonomics, you'll have to shop around. I have a Neutral Posture chair at work (w/the floating arms keyboard) and a Hag Capisco at home (along with a standing workstation). It's hard to beat the Neutral Posture chairs for a sit-all-day kind of work chair (unfortunately, you'll have to find a place to try them -- one size does not fit all).
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Back in 1998 Rivest wrote Chaffing and Winnowing: Confidentiality without Encryption.
For those of you not too finicky about the feel of the keypresses (they're a bit clicky), I'd recommend the "Floating Arms" split keyboard (they attach to each arm of your chair), available here and here. I'll second the lackluster reviews of the Aeron -- it's a good general purpose, one-size-almost-fits-all chair, but if you want that last 30% of comfort and ergonomics, you'll have to shop around. I have a Neutral Posture chair at work (w/the floating arms keyboard) and a Hag Capisco at home (along with a standing workstation). It's hard to beat the Neutral Posture chairs for a sit-all-day kind of work chair (unfortunately, you'll have to find a place to try them -- one size does not fit all).