i got my SLK-900A today, and im very impessed with this thing. its the first thermalright heatsink ive ever owned and im damn happy with it. when i was using my Zalman CNPS3100plus i was idling in the low 40s at 1.6V. now, im at 1.675V and idling about 34C, and thats only with a 48cfm sunon 92mm. i will be getting a TTSF2 soon, if i can find one. all of the sites these days seem to be selling the LED SF2, but i dont want the bling. just thought id share my experience with everybody. from now on, im a thermalright only guy....unless i decide to do a water setup one day.