you are missing out on a lot

all of the hardcore overclockers cool their southbridge as well

even with a vantec copper iceberq heatsink fan!

thats overkill so i just have a copper heatsink glued onto it
which does a good job but it is still hot


anyways
vantec copper iceberq 4 is a good choice
if that doesnt fit your northbridge then go with the iceberq original

good kit