Wait which cooler do you have already? I did not see one listed above.
Are you saying you ALREADY have this one?
http://www.coolermaster-usa.com/product.php?product_id=2923&product_name=Hyper%20212%20Plus
I don't think there is much between that one and this one.
http://www.coolermaster-usa.com/product.php?product_id=3053&product_name=Hyper%20212%20EVO
I think it just has a better fan. However, you can always replace that if it craps out. I use these fans, well the red LED ones. and they are pretty quiet, more a good bit or air, and haven't crapped out like many other fans I've used. http://www.coolermaster-usa.com/product.php?product_id=2916&product_name=R4-C2R-20AC-GP