I do have a update to do to this thread.
Corsair have sent me two new 4pin PWM replacement fans, this should cure the noise issue being reported.
My SP120 PWM fans are getting fitted on friday to this cooler

I do have a update to do to this thread.
Corsair have sent me two new 4pin PWM replacement fans, this should cure the noise issue being reported.
@stulid & Spook187: Be intrigued to hear where they fit in the range compared with the SP120 PWM High Performance Edition (ocuk link) and the SP120 PWM Quiet Edition (OcUK Link).
ahh sorry, its the The SP120 Quiet Edition PWM which i am fitting.
Still be intrigued to hear your thoughts.