I am requesting some help with regard to the replacement of my power supply fans on a Dual 2.0GHz G5 to a more quieter and better-made version. Currently these fans are the only noisy ones in the unit, and I would like to replace them myself as Apple will not. I currently am in posession of a pair of high-quality fans which run very quiet and still privde enough airflow; all I need is the how-to information. I would like to know if there is information with regard to this somewhere on the web, as well as the availability of the fan recalibration software. I would much appreciate anyone with links and/or information on this to please respond and post your findings here. Thanks in advance!