http://www.newegg.com/Product/Product.aspx?Item=N82E16835553006&ignorebbr=1Just thought I'd share this really quick. These fans have hydro-dynamic bearings and are rated for 300,000 hours, which is like... 34 years. The main point is that they are nearly silent. They're 17.9dBa, and I can attest to it. Put a couple of these in my brother's computer, and you don't even know that it's on anymore.
I assume several of you guys have PCs in your listening rooms for a variety of reasons, and lowering the noise floor is always a good thing.
