I replaced my Sparkle FSP400-60GN with an Antec TRUE 330. The Sparkle has been reliable, but the noise level was killing my ears. I had replaced my fans with Vantec Stealth fans, but I didn't notice any difference. Finally, I decided that the PS had to go.
If you are having noise issues not related to your heat sink fan- you should consider your power supply.
If you are having noise issues not related to your heat sink fan- you should consider your power supply.