Summary: For the price, the Zalman ZM-F3 offers great value. It comes with some soft case fan standoffs and a silent mode adapter, which is simply a 7V resistor. At stock, the fan can be quite loud, but when used with the resistor it is silent and still gives sufficient airflow. It is ideal for silent users on a budget that do not have a fan controller.
Summary: The Zalman folks know cooling. Nice and quiet, just the way I like my systems. At 120mm, it will fit in the latest cases and provides good airflow. Noiseless connectors aid in the noise reduction.