Can anyone recommend a really quiet 120mm fan (and also 80mm, if it's not the same make)? I just got a CoolerMaster Praetorian 732 case, but the 120mm front intake, and the dual 80mm rear fans are a little loud. Unfortunately so is the SilenX 11db fan I bought to replace the front fan - if fact I think this company is using very misleading marketing as 11db should be virtually noiseless, and many times quieter than the 20db my case is rated as. At the moment I have all case fans running at 5V using a Zalman Multi Connector, but that means I have very little airflow. Thanks for any suggestions!