Hmmmm.... You might want to watch those Enermax so-called "whisper" power supplies. I picked up with the mistaken idea that they were actually quiet. Not even close! The 80mm and 92mm fans in the thing were quite a bit louder than the three top mounted fans (PC Power & Cooling 80mm's). I ended up having to order a replacement 80mm and 92mm PC Power & Cooling fan for the PS just to quiet things down again.
The power supply itself does an amazing job for 350 watts. I have two 5400 rpm HDs, two 7200 rpm HDs, an AthlonMP 1600+ overclocked to 1575 MHz, a GeForce3 Ti200 overclocked to above Ti500 specs, a SB Live! Value, an ATI TV-Tuner card, a 10/100 NIC, a DVD drive and a burner as well as a fifth 80mm fan in the back of the case (PC2-C). Never a hiccup.