http://www.ikeahackers.net/2011/01/when-imac-goes-to-work.html
This looks like it would work with a stool, as described, but also, as a standing desk.
Materials: 1 LACK Wall shelf unit, 1 LACK Wall shelf, 2 CAPITA Bracket, 1 DALFRED Bar Stool
Description: First of all it’s necessary an iMac 27”!If you are looking for a workstation comfortable and elegant, suitable for a small space, this is the solution for you.
You only need a Lack series, especially a wall shelf unit, a wall shelf and brackets.