http://www.newegg.com/Product/Product.aspx?Item=N82E16835186053
$20.00, not too bad. If you like the accoustics, you can use it on whatever card you upgrade to that it is compatible with (like, say, a 7790.) It has a six year warranty, so why not?
http://www.arctic.ac/en/p/cooling/vga/425/accelero-l2-plus.html?c=2182