I currently have two 20 inch Apple Cinema Display and very limited desk space. I have been looking for an arm/mount that can handle both of them at the same time. The only real features I would like to have are that both monitors can rotate from landscape to portrait as well as being able to be slide together. I have been looking around and have found many options, I think I am leaning towards HumanScale's M7 monitor arm for two monitors - I have a family member that works for an office furniture supplier that sells them and I can get 65% off. (Great discount - I already got a Aeron chair for $250 
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Here is an image of the M7
I am open to suggestions from any one that has used this or if there are any other recomended arms for two 20 inche Cinema Displays
)Here is an image of the M7
I am open to suggestions from any one that has used this or if there are any other recomended arms for two 20 inche Cinema Displays