Just got the NF-F12 PWM fans this morning and installed them... Night and day in terms of the noise they make and the temps are better. Probably the best purchase I could make to be honest super quiet system now! GPU stays below 60c and CPU hovers around 58-66c during gaming.
I got the industrial ppc variant of those on my rad. theyre nice :D
Super quiet and in a weird way I like the poop look... :)