Funny, I went as far as the credit card entry form of http://www.geekdesk.com today but stopped short of sending the order. I looked for cheaper alternatives, and found http://www.ergodesktop.com, which is still pretty damn spendy.
What I want is a solution that's easy to setup, and is portable. I work at a variety of locations and would like some mechanism for turning any surface into a standing workstation. I think I may whip up a few prototypes in my spare time.