Overlock 9800gtx an easy but need advice for cooling

Hello ,I bought a 9800gtx from the galaxy, i would like to overlock as possible but I need a better cooling, I have 2 products that torte me in the head as accelerate xtreme 8800 or Zalman gv1000 their new output that is equivalent to Zalman zf1000 except you can adjust the ventilation easier and he has a little more air flow, I know which to choose or if there are other known to me and thank you in advance for your opinions.

Hi I would accelerate for xtreme 8800.

I think the accelerate xtreme 8800 is special for the G80 I think it passes on the G92.

yes I forget but there is one new Accelero Xtreme 9800 the link otherwise there is also the home of the Artic Cooling also link or Zalman GV1000

Yes I know but I would like to know is which would be the most powerful for a good overlock my 9800gtx give several opinion so I can take my thank you more easily answered me yet ...

I would say the Xtrem 9800: yes:

ok thank you I think I'll take xtreme 9800, but I have a problem I can not find it on sale, if anyone know a link for me to thank you and buy yet another question is what the xtreme 9800 is as powerful as the level cooling Zalman gv1000 which is the equivalent of Zalman zf100 for this that does not know. thank you for your response