Fans are one thing, but another thing that makes A LOT of noise are harddisk drives. Actually I found that the noise my CPU and PSU fans make is negligible compared to the noise my drives make (7200 RPM drives). I've seen some solutions for that, but they almost always mean I have to put my HD's in to a sound-absorbing box, which I then have to put into a 5.25" slot. I could do that, but quietPC mentions that their Silentdrive casings are 7200RPM compatible 'in most cases' (here), however, their dutch site mentions THE SAME product as only 5400RPM compatible. (here) Anyone ever used on of those Silentdrive boxes ? Do they work with 7200rpm drives? (Mine are 80gig Maxtor drives)

This is my case. It's the Chieftec DX-01BD. I absolutely love this case. Not only for it's colour - a cool black-, but also because it's *very* solid. AND because I can open it up with very little effort, much like I open the hood of my car.

I only have one problem with it :
As you can see in pic 10 & 11, it's possible to add a fan to the HD holder case. This case then just "clicks" into the PC casing. A very good idea, weren't it for the fact that that fan is then sucking it's air from the front through the air holes provided. And this DOES make a lot of noise. I believe this is because of the air slipping though the holes in the case, rather than the fan itself. (could be wrong though).
I of course could always diconnect the fan, but I don't want to leave my HD's without any active cooling. After all, as said before, they are 7200RPM drives and they DO get pretty hot.
Quietpc.com mentions Ultra-Quiet Case Fans here. Anybody tried one of those yet? Do they really differ that much?