I hope sammorris will answer this as he has one I think and he originally advised me to get one, but obviously all comments are welcome. I want to buy one from here: http://www.ebuyer.com/customer/prod...hvd19wcm9kdWN0X3Jldmlld3M=&product_uid=105994 The issue is, a few reviewers have said it's very big and to make sure you have space where the psu is. The case for the system I want to get this for is pretty small: http://www.maplin.co.uk/Module.aspx?TabID=1&ModuleNo=49050&doy=search I have about 2.5cm inbetween the current intel stock hsf for the e6400 and the psu, about 8mm on the other side (heatsink on the northbridge is there). Then to the back I have 1cm because of the exhaust fan on the back of the case (I could put that on the outside of the case if needs be, making 3cm more, total 4cm to the back) and opposite that to the front I have about 4cm before I get to the ram. I have about 12cm from the top of the fan to the side of the case. If it wasn't clear, all of the above measurments are from my current stock hsf to the objects around it. I see it aligns nicely, blowing the hot air out the back (fan at front near ram), but I can't tell from the size dimensions (because it's asymmetrical) if it would fit in with my psu. Also, some people are saying the fan is loud, some are saying it's so quiet they can't even tell it's running, in your experience?