Oh I see, you're going for. The heat pipe thing is a waste of money if you don't have an addition fan blowing on it.
You'd need a alman FB123 Fan Bracket to hold the 120mm fan (not necessary, as 90mm will do the job fine) -
Then you can use a Thermaltake GIANT II Heatpipe -
or Zalman ZM80A-HP -
I don't think it's worth the extra money just to bump your video core/memory up a couple of MHz.
BTW, the products shown are available @ SVC.com. The bracket is $7, heatpipes are $25.