Are motorized height-adjustable desks really so hard to come by in the states? I ask because they are the norm here in Denmark and most office workers use them to stand up for part of their workday.

I'm always surprised to see guys set up improvised standing desks on filing cabinets and stuff like that. From several years of experience: You need to be able to sit OR stand at your desk. In a very short time, you will automatically alternate between these positions whenever you feel tired in the back (from sitting) or feet (from standing).

I would never work somewhere that didn't provide a motorized desk. I have gotten so used to it that I even have one in my home office (http://imgur.com/A1eS2), set me back about a thousand bucks, an amount most of us would spend on gadgets without blinking.