I'm looking for a simple way to raise/lower an existing desk for seated/standing pc work. Answered
This is the closest thing I've found yet: http://www.ergospec.com/products/retro_lift_systems/retrofit.html
I have been tinkering with a crank/cable idea, maybe counter-weighted; nothing good yet. It has to raise/lower about 18 inches smoothly and with good stability. Manual cranking is preferred - electric motors or hydraulics seem too complex/expensive. Thanks!
Just uploaded a photo of the desk.
One more note - if I were stating from scratch, I might look at one of these: http://www.geekdesk.com/. But I like this desk, just want a bit more flexibility (maybe even slide a treadmill under one day if I can raise it even further)