Here is a simple stupid mod that costs like fifteen cents to do.
You can mod a cpu closed loop water cooler like a Corsair Hydro Series or Antac Kuhler 620. Simple mod that only requires zipstraps to complete. Nvidia or ATI cards will work, any model and vender. Takes about 15 minutes. Ive done my Zotac 560ti REMOVING stock fans and reached 1275core and benchmarkable. My Asus Matrix ROG GTX 580 has also been done. Many others have used this same mod on their cards. NO B.S. here
Here is a link to OCN where ive got the build log. In that same section are other users who have posted their build logs
Enjoy and ask as many questions as you want. Ill answer all of them honestly.
http://www.overclock.net/nvidia-cooling ... rsair.html
quick pic of the 560ti
_IGP9527 by cravinmild, on Flickr