msfoamy
And it's cool to hear you say that last bit because I feel the same way. I really need to sit down to work through through a complicated problems that requires focus. Emails and phone calls are standing and furrowed brow activities are sitting.
Seriously though, I agree with you I think. As I understand it, you get the health benefits from moving and fidgeting more, not from just standing like a statue.
Ye olde New York Times article talks a bit about this: http://is.gd/3k4zJp
And that article gave me a fancier way to say fidgeting: Non-Exercise Activity Thermogenes or "NEAT"
My first standing desk was similar: http://is.gd/X0JzNu
Our cubicles let you attach shelves or desk tops anywhere along the height of the cube wall. Oh man, I forgot I literally used tape to keep that together. And it wasn't even duct tape, yikes
And here's where I sell them: http://is.gd/1v7H8k
For me, using a stool makes the switch back and forth between sitting and standing much more seamless. And it's the shifting weight and switching positions that gives you most of the benefit anyway.