Add-on Custom Coolers

I would like Some advice on coolers, I have a intel core i7 2600k and might be looking into over clocking it so I would like too know what a good cooler for this would be, and also im either going to be buying either a 7950 or a 7970 i have my reasons so please don't try and recommend a different card

ATI 7950 3GB MSI PCIe Video Card
ATI 7970 3GB Gigabyte PCIe Video Card

now are there any custom coolers that will keep these cards nice and cool, as in below 70 degrees Celsius

any help would be appreciated

 

7970 of course, the higher version has better performance and cost more money too

 

The Accelero Xtreme 7970 VGA Cooler but cost you a arm and leg
http://www.techpowerup.com/158024/Arctic-Readies-the-Accelero-Xtreme-7970-VGA-Cooler.html

http://www.arctic.ac/en/p/detail/index/sArticle/502/sCategory/2182


You could email Prolimatech see they can confirm that cooler would fit although even if they say yes the VRM cooler will not fit as the 7970 has a crappy VRM fitting area.

And if you use a 3rd party cooler you might want to go for the trin fan XFX ones as they carry a lifetime warranty with them how ever check if your allowed to remove it as places like Europe your not allowed to change it were as in the US they don't mind.