hmmm.... I went for the bigger psu in the end as it was on offer i would have thought the Seasonic X 1050w model would be just as quiet as the rest of the range.
Currently have the fan facing down bringing in cool air from underneath the case, but i will try the other way just to see how i get on. Always thought i would have best results pulling in air from outside the case rather than inside the case.
Can't understand how the manufacturers think this kind of fan behaviour is acceptable