I have an OCZ Gladiator and think I am going to lap it. It is all copper. What grit sandpaper should I use and what should I use to polish it when I am done? Also, would a smooth piece of wood be a good surface to use? How much do you think this would help my temps? I have a PIII700 o/c and load temps can get close to 50C. I can't stand loud fans either so I am using the YS Tech fan with 2 80mm case fans.