Sharkoon Silent Eagle 1000 Fan 80mm
http://www.sharkoon.com/
If you are looking for a powerful and high-performance but concurrently noiseless case fan, then the Silent Eagle is the choice. In comparison with conventional fans the unique surface structure of the Silent Eagle allows an improved airflow - at the same rotation speed. This principle is based on the surface texture of a golf ball, which helps to reduce air resistance and turbulence, resulting in particularly quiet operation while maximizing airflow volume. In addition, the rounded edges of the Silent Eagle's frame offer a markedly improved air intake.
Dimensions: 80 x 80 x 25 mm
Connection: Molex connector
Air flow: 19m3/h
Fan type: metal sliding support
Rotational speed: 1000revs./min.
Noise development: 8,9dBA
Current consumption: 0,1 A
Input: 1,44W
Voltage: 12 V
Accessories: New rotor blade and frame design
You need to put this baby right up to your ear to hear anything, its weel cool and quite, am gonna pick up another one shortly. i think there is a 120mm one but check the site above to make sure.