Despite my best efforts of sitting up straight, getting an ergonomic chair,
making sure my desk is a proper height (I'm a tall guy, so my desk is
'modified' to reflect this), and I make sure I stand up and at least
stretch every 30 minutes (or so), my back still bothers me some days.

I saw a Wired article a few months back hailing the benefits of stand up
desks (http://www.wired.com/wiredscience/2012/10/mf-standing-desk/), and
also found an article in NY Times (
http://www.nytimes.com/2012/12/02/business/stand-up-desks-gaining-favor-in-the-workplace.html?_r=1&)
and wondered if there were any other developers/list members who used them.
 In my mind, I'm trading one problem for another, and I'm not sure I want
to be standing up all day long.  On the other hand, my back is killing me
today.

Suggestions?

Mark