Well swopped all my case fans for nice quiet papst beautys. I can't believe how little noise there is now.I now have 1x120mm blowing on my hs.1x92mm in a side blowhole aimed at my hd,2x80mm on the front blowing air in and a 92mm on the back as an exhaust.I tried a 80mm and a 92mm on the hs but the 120mm keeps it coolest.My temps have come down from 57-58c with the 80mm fan to 42-44c with the massive 120mm.Best of all is the lack of noise.I can even hear my tinnitus now over the fans.Even the wife complimented how quiet it has become as she didn't even realise the pc was switched on.
Long may it last.Nice that something worked out for a change.Well almost but thats another "please help me" post yet to come lol