I just oc my p4 3.2 to 3.4 with stock hsf and temps went all the way to 61ds, but with stock speed idle temp is between 40 to 45 and under load is 50 to 55 so for now i switched back to stock speeds. I want to buy after market heatsink fan can anyone suggest me which one to go for and how far i can go oc with my p4 3.2 or its not worth it, any help will be much appreciated thanks.