First one seems good and if I am understanding, it blows air off the cpu? Kind of suits my case considering my cpu is in the middle of 3 exhaust fans.
Heatsinks do not blow air off the chip. No fan that would fit into a case could blow enough air at sufficient speed and volume to cool the chip. They
sink-absorb-accept the heat into a dense and heavy block which has heatpipes going through it, the heat is then moved along in the air or fluid within the heatpipes into the fins (by one excited molecule hitting another that is not excited), which have a very large area (to accept lots of heat) and then into thin sections to dissipate it quickly. Look at how the heat goes from a heavy base into lighter-weight pipes into very lightweight fins and lastly into the air. As long as the fan keeps running, the heat from the chip has a place to go because it eventually makes its way to the air. If the fan stops, the whole cooling system overheats-- and you buy a new chip. New heatsink and fan, too, because the first one is most likely not flat anymore and won't draw the heat as well. The Arctic Freezer Pro 64 or whatever it's called is recommended for AM3 chips. Read the reviews of it. People seem to like it a lot. My next build is going to have a 125-watt AMD four-core and will use this cooler...
This chip:
http://www.newegg.com/Product/Product.a ... 6819103808