OK, I'm buying Thermalright AX-478. Now, for the fan: Noise is not a great concern, but as a practicing audiophile I would definitelly like to be able to listen to some music after a few hours of work on my computer without having to turn the volume all the way up and wake up half of the neighbourhood. So, I reckon something around 50-55 cfm and 40 dBA should do the trick. I'm considering the following fans (any other suggestions are welcome, naturally):
1. Sunon KD1208PTBX-6A, 50.6 CFM @ 40.5 dBA, 3900 RPM, 4 Pin
2. Thermaltake Thermal, 53 CFM @ 39 dBA, 5000 RPM, 3 Pin.
3. YS Tech Adjustable, 48.7 CFM @ 39.5 dBA, 3700 RPM, 3 Pin.
Which one of these or any other suggestions?