I like the Steelcase Leap chairs (http://steelcase.com/na/leap_products.aspx?f=11852 http://steelcase.com/na/leap_products.aspx?f=11852) and the Haworth Zody ch

I like the Steelcase Leap chairs (http://steelcase.com/na/leap_products.aspx?f=11852 http://steelcase.com/na/leap_products.aspx?f=11852) and the Haworth Zody chairs (flash-based site, so here's a review instead: http://www.geek.com/articles/gadgets/review-haworth-zody-chair-20080326/ http://www.geek.com/articles/gadgets/review-haworth-zody-cha...) are really nice, but they're in roughly the same price range as the Aeron. Having more names to search for will help with finding a good deal, though, and while it's a lot of money upfront, it's not so much divided over 10+ years. (In interest of full disclosure: I work with the furniture industry.) It also helps if you live in Michigan, near where they're produced, 'cos then you can get them off craigslist for cheap. :) Also: The comfiest chair in the world won't make up for getting up and stretching periodically. The human body isn't really that well-suited to sitting, spending ten hours a day staring at something right in front of you, and typing.