Now, stock amd HSF have the thermal paste inna little cube, you can rub that off with a small towel or paper towel. Then put a small dab of thermal paste on the cpu (remove the plastic cover onnit first if there is one!).
The stock amd fans are ok, but yeah, in the long run you'll want better, like this one:
It's gotta bit of a big price tag onnit yes, but man is it sweet. It even has 4 blue led's built into it so it's gotta little lightshow going on.
Next comp build I'm getting it. It's probably the best heatpipe cooling solution out there. The zalman 7700cu is also good, but it's fat, so it takes up space, usually a ram slot or 2 so that sucks and that's why I don't really reccomend it unless your mobo has the cpu and the ram slots spaced out quite a bit.