After reading up on GPU coolers, I decided to get a Vortexx Neo, because my GPU was running at about 80c on idle (95c under load). I started using MSI Afterburner to make better use of the fan, and managed to get it sitting around 60c idle and about 85c under load. The first image is not quite accurate, because I had just run the fan up to 100% to see how noisey it was, then dropped it back to 35% (about as loud as I could tolerate)

before by PMolkenthin, on Flickr

IMG_1236 by PMolkenthin, on Flickr

IMG_1237 by PMolkenthin, on Flickr

IMG_1238 by PMolkenthin, on Flickr

IMG_1244 by PMolkenthin, on Flickr
A quick comparison of old and new...

IMG_1248 by PMolkenthin, on Flickr
Stock cooler off. It was pretty messy in there...

IMG_1251 by PMolkenthin, on Flickr

IMG_1253 by PMolkenthin, on Flickr
After a good clean....

IMG_1257 by PMolkenthin, on Flickr
Thermal paste and heat pads in place...

IMG_1261 by PMolkenthin, on Flickr
Cooler fitted....

IMG_1264 by PMolkenthin, on Flickr
The end result..

after by PMolkenthin, on Flickr
It idles around 40-42c and under heavy load 65c (ish) and the fan is inaudible over the rest of the fans in my machine. Im very pleased with it.

before by PMolkenthin, on Flickr

IMG_1236 by PMolkenthin, on Flickr

IMG_1237 by PMolkenthin, on Flickr

IMG_1238 by PMolkenthin, on Flickr

IMG_1244 by PMolkenthin, on Flickr
A quick comparison of old and new...

IMG_1248 by PMolkenthin, on Flickr
Stock cooler off. It was pretty messy in there...

IMG_1251 by PMolkenthin, on Flickr

IMG_1253 by PMolkenthin, on Flickr
After a good clean....

IMG_1257 by PMolkenthin, on Flickr
Thermal paste and heat pads in place...

IMG_1261 by PMolkenthin, on Flickr
Cooler fitted....

IMG_1264 by PMolkenthin, on Flickr
The end result..

after by PMolkenthin, on Flickr
It idles around 40-42c and under heavy load 65c (ish) and the fan is inaudible over the rest of the fans in my machine. Im very pleased with it.