Hey Phide.
Well Yate Loons vary and you may have a bad set. . That's what is nice about recommending the Nexus to quiet noobs, you _know_ it's going to be a good sample.
But even if they are good samples, there are _way_ too many fans in your rig to think it's aproaching anything near quiet (I'm mean actually quiet, not just quiet compared to an old Delta screamer fan setup or something). A machine consisting of three (CPU, PSU, Extake) good YateLoons @ 5v is a good start in the right direction. Your evercools may ramp down fairly well though @ 3v.
A quiet cooling tip: The location of the airflow is what matters, not the CFM.
You're heading in the right direction Phide, keep working at it and I'm sure you'll hit paydirt.
Yeah, air is where it's at, but you're absolutely right Brian, its not really any fun. Water starts to shine through when you want more than just quiet. Like quiet + monster OC. That said, maybe both of those might not be mutally exclusive on air in the near future with the emphasis of low power/watt ratio nowadays.