Being an HVAC technician airflow is music to my ears and I have never been bothered by fan noise. I would rather have my components thoroughly cooled and sometimes that means moving some serious cfm. How the manufacturer goes about this makes all the difference but unless they make the power supply the size of a toaster it will be difficult to find fans that can move the required cfm without some noise. We want server quality power supplies but small desktop noise levels and that is a very tough challenge.

I have been planning on getting a PCP&P 610 for my current rig but the Corsair 620HX also looks good.

Congratulations OCZ on a great purchase!