You don't say what case you are using. Make sure that the Heatsink that you will get will fit in your case, and don't forget about clearing side case fans, motherboard heatsinks, memory and video cards.
I know the Noctua's are excellent coolers, they should be for the price, but can anyone honestly say they like the look of them? I mean this NH-D14 just looks like a car radiator wrapped in a leather belt.
Has anyone ever fitted one, I was thinking of getting one because it does such a good job of cooling the surrounding components but due to the size I was thinking it can't be an easy installation, and this put me off..-
you may want to look at noctua's other cooler - NH C12P SE14... i nstalled it recently on my friends gig (HTPC case)... it looks awesome with a 140mm fan and its silent to a whisper and best of all its a top down cooler which cools the northbridge and ram heatsinks as well... and it handled the i5 760's 3.6Ghz OC like it didnt matter...
ive got a 955 oc'd to 4ghz on my xiggy darknight, use the XIGMATEK Crossbow Ack Ati775 Mounting Kit for AMD AM2 / AM3 / K8 and Intel socket 775 to put it in a west east config like i have and some artic silver 5(put small linear strip on each heatpipe then get the thumb screws as tight as you can) bake it for about 3 days on prime with stock clocks and you'll see a 6c drop in temps then oc. also if you want put the case on side to get water in heatpipes to condense faster and get to the cpu(this is what i do, the temps never get higher than 61c on prime95 64bit, 52c on games max settings on bc2) my case is cm storm sniper