Well, i have one and it's the best of its class!
But price is a little heavy (I got it for free so can't complain)!
Consider the price of 90 w/out shipping, you may want to consider these choice:
1. Spend 30 more and build yourself a water coolign unit
($25 for radiator from car part shop transmision cooller, another 35 for waterblock, 50 for pump + storage
and 20 for the rest of the little crap)
2. Go for some other great heatsink if you're a little scare of the water cooling stuff! (Thermosonic Thermoengine i saw over at www.2cooltek.com is about 32 w/out shipping and the preformance is not bad!