It may work, the fans will run at full speed all the time though, they have no controller.
Another alternative is to remove the current fans and either stick or cable tie a pair of speed controlled case fans over the apertures-a little crude but very effective!
As far as I can see Arctic make two coolers that should work:http://www.newegg.com/Product/Product.aspx?Item=N82E16835186053http://www.newegg.com/Product/Product.aspx?Item=N82E16835186063
Both come with a number of extra small heatsinks for memory and VRM components. Their website has some excellent information on compatibility and provides drawings that give full details of the coolers dimensions.
Or you could simply (if more expensively) upgrade to a faster card.