I think it's a clever design. I've thought of it myself in various versions. Looks ok i just wonder if those fans deliver enough air when under heavy load. Noise is not really a problem imo. I have few 40mm and 60mm fans from Noiseblocker which are very silent. The tiny 40mm runs at 3800 RPM and i can't really hear it. It's attached to my chipset cooler. So these shouldn't be of any problem.