What about this little number...the ErgoMounts Super-Slim arm series!
It is quite simply one of the slickest, strongest and stylish solutions on the market!
The 1cm diameter stem connects two teflon coated ball joints which each provide 37.5 degrees of movement in all directions, enabling the 'SS' Series mount to provide height, reach, tilt, angle left to right, rotation of 360 degrees aound the base and portrait to landscape movment.
This mounting solution supports monitors up to 15 kg's and its cable management is designed via a simple hoop system on the underside of the stem.
The Ergomount comes with desk clamp or bolt through desk fitting which just requires a single 8 mm hole to be drilled into the worksurface...and for added safeguard, a tamper resistant bolt through version is also available utilising complete anti-theft components (SEC).
In addition, for your convenience, it is supplied with 75 and 100 VESA interfaces and is touch screen stable.