Standard VESA mounts are available for iMacs and Apple displays. Bolt one on (slightly easier said than done on an iMac, but the cinema displays are fine) and attach to an arm of your choice, and the problem is solved.<p><a href="http://www.computingplus.co.uk/monitor-arm-range.htm" rel="nofollow">http://www.computingplus.co.uk/monitor-arm-range.htm</a>