I have a desk that Ikea used to make called the "Jerker" (I have no idea what that translates to). The desk surface can be configured to be at any height allowed by the array of holes for the bolts along the two vertical sidebars. I had it configured as a standing station for several months while I was in a less active part of my life. When my life changed and I became more active, I configured it as a sitting desk.

There used to be a website where people would share pictures of their Jerker setups. I wonder why, with such a loyal fan-base, they stopped making it.

Edit: the Wikipedia entry for Ikea offers this explanation: "Because IKEA is a worldwide company working in several countries with several different languages, sometimes the Nordic naming leads to problems where the word means something completely different to the product. While exotic-sounding names draw attention, e.g., in anglophone countries, a number of them call for a snicker. Notable examples include "Jerker" desk, "Fukta" plant spray and "Fartfull" workbench. Also, the most recent new product, Lyckhem (meaning bliss)."

Coincidentally, I got a relevant web-advertisiment this morning. I like the idea of being able to easily reconfigure the desk more often:

http://www.geekdesk.com/