not that it is necessary, but i opted for a volcano 7+. it dropped my temps to 1~2C above case temp at idle, and 9c or so above case temp at full load, fan set to med or high.
nice: just as quiet at low, and you can run anything at low and not break 45c or so.
bad: on high it sounds like a handheld vacuum like a dirt devil.
looks: 10
effectiveness: subjective. i'm completely happy with it, though.
btw, go italy! second half vs. korea just began.