I often read people complaining about noise, but to be honest, I've NEVER been affected by this.
I've always had my winamp cranked up and I never hear my fans even at top speed via the controller.
Furthermore, If I'm gaming, it's the game music instead. Let me tell you I stay in a Student Hostel, my bed is 5 cm away from my pc, my head is usually less than 30 cm away from my pc, and my pc is on the floor, so it levels with my head, and I've NEVER lost a night of sleep over fan noise.
But then again, maybe my fans are never loud enough? (40-60 dB range).
-HypoG