Triple Monitor Stand - UK
I have what was an expensive Comrac Sagitta triple monitor stand that takes up to 21" monitors. In addition I also have a Comrac single monitor stand, the idea being that the the two extension arms from this could be utilised to extend the arms of the triple monitor stand to allow larger monitors to be used. Although this would put more strain on the arms (the weight being further out) the thing is exceptionally well built and very, very strong so this shouldn't be a problem.
With the additional single monitor mount there would be two pole stands and desk/table fixings so you could if you wanted mount each side monitor on it's own stand.
The triple stand is new and unused and cost around £240. I will sell both stands for £120 or the triple stand on its own for £100, including UK courier delivery.
For further info see -
http://ergonomics.comrac.co.uk/main.asp?pid=206.
There is a downloadable pdf file here.