[mpercy]

Cool idea. I've done the standup desk thing before at work with a tall chair as a sitting option. I actually ended up using the chair most of the time so I switched back to avoid constantly vaulting up and down, but it was an interesting experiment for about 2 years.

One concern I would have about this particular configuration is the lack of a keyboard tray. Ergonomically, you would want your eyes about level with the top of the monitor or maybe a few inches below the top. At the same time, you want your keyboard to comfortably sit below so that you can keep your elbows at about 105 degrees or so. With the addition of a keyboard tray, and possibly a monitor stand, this can be a really nice long term ergonomic setup.

Found some tips on ergonomics at the link below, and these are inline (no pun intended) with what I have heard from the mandatory ergonomics training at my employer.

http://www.bellaonline.com/articles/art21940.asp