Hi all! I am going to buy a new computer, and I basically have everything now. Except for my CPU cooler. I will be using it on a AMD Phenom II X6 1090T, on a Asus Crosshair IV Formula motherboard. I am not planning to be pushing extreme limits, around 4GHz I guess. My budget is about $60-$70 or 40-50 euros. I heard that the Prolimatech Megahelm was really good with a Push-Pull confguration. So that would mean that I should get 2 seperate fans. Does anyone know some good ones? I'd prefer them to be under 10 dollars or 7 euros. I just found these two: http://www.newegg.com/Product/Produ...rue&Keywords=(keywords)&Page=2#scrollFullInfo and http://www.newegg.com/Product/Product.aspx?Item=N82E16835200028. Both have really good reviews, but one has a sleeve bearing type and one a 2 ball bearing type. Is there a big difference? Are these good fans?