Hello! I have asus p7p55d motherboard,intel core i5 750 2.67Ghz,Sapphire Radeon HD7950 and Kingston 4GB Ram 1333. I am going to overclock my cpu to 4GHZ and I want to buy a nice and not so expensive cooler. After a lot of searching, i ended to Coolermaster 212 Evo. I tried to order 212 evo in one store here in greece with 30euro but it is out of stock..... Now I can find it at least 40euros, but also i can find 412s in the same price! What is the best to buy? I have already read some reviews, but i am still confused. I want it to fit in this case: CM 690 II (ver.2) (RC-692B-KKN5 / KWN5) http://www.coolermaster.com/product.php?product_id=6793 Is 412s better? and i think it is a little bigger. Will it fit ok like 212 evo? I will probably use a single fan. What should i do..