i have nver done anything other thatn ot on the stock cooler on my CPU. i want to get a new one. i am looking at a zalman. i want one that it cool and quiet. anyway. when i get it how much paste do i use? do i put it on the Heatsink first or the CPU?. ifanybody has a pictures of this that would be awsome. but any help is appreciated. and any other tips for this task would be cool to.