I found that there are currently 3 different models of Arctic Silver thermal compounds: Ceramique, Alumina, and Arctic Silver 5. They all seem to be pretty close in comparison, does anybody know which is the better model? I am currently using a 3.4GHz, socket 478 (maybe moving up to the 775 socket eventually). I am not overclocking nor using water cooling in my system. This would be for my Antec Sonata II case. Thanks for any input.