Thanks, I will try and get out at the weekend and try a few keyboards and look at monitors too if possible.
I will also do a video search on fan set ups. Am I correct in thinking the fans have arrows which show the direction of air flow and if so, I would have the 2 front case fan arrows pointing into the case and the rear case fan arrow pointing out of the case and the 2 other fans under the rad with the arrows pointing into the case?
I will check the vids but there are always so many different opinions, I thought it best to ask.
Thanks again for all your help.