So i just got all my parts in for my build and awaiting my case. I have a Newegg.com - XIGMATEK HDT-S1283 120mm Rifle CPU Cooler - CPU Fans & Heatsinks and a Newegg.com - Intel Core 2 Duo E8500 Wolfdale 3.16GHz 6MB L2 Cache LGA 775 65W Dual-Core Processor - Processors - Desktops . I was also going to try and oc it as well.. I heard that lapping allows for better heat transfer and overall lower cpu temps, but with the HDT heatsink, should I still lap my cpu and if so what grades of sandpaper do you recommend and where can I find them.