Okay if your not going to overclock a decent paste is still in order. Clean the top of the cpu and the base of the heatsink first (I use rubbing alcohol on a cotton ball). Apply your paste(any quality paste will have detailed directions) and Install your HS. Happy Computing.
Wouldn't the paste that's already on the stock heat sink/fan already work? I mean, I ordered the Arctic Silver, but I thought the paste already on there would work. I WILL eventually be replacing the stock heatsink fan just for the heck of it I guess.