Over the last year, Nexus has taken the traditional computer mouse and put a silent twist on it - creating the 'Silent Mouse' series. They had the SM-7000 for your laptop and the SM-8000 that was a larger and more ergonomic model for desktop use. The annoying clicking of your mouse is something you don't even think you notice, until it's gone. After the SM-8000 review I ended up replacing my rather expensive "brand name" desktop mouse with the SM-8000. Although it lacked some of the features my other mouse had, which I rarely used anyway, it's silent design was a welcome addition to my silent optimized workspace.
The downside to both the SM-7000 and SM-8000 were that they were only a traditional LED optical design. They lacked the added precision and tracking surface compatibility that a laser mouse would have. For me, this part was the biggest downgrade over my old mouse, and I did notice it. Thankfully Nexus was one step ahead of me and already had the SM-9000 deep in development. The SM-9000 brings yet another new design to the Silent Mouse series and is also the first in the series to offer a laser optical sensor.