60 degrees C won't kill your processor. Current AMD chips (don't know about Intel but they're probably similar) will be quite happy at 80C. They won't like you much if they get above 80, but 80 is fine. Mine runs at 55-65 constantly and there's nothing I can do about it. I have 10 fans in my computer and have gone through three heatsinks (including the stock one) costing about £30 each but the auto-shutdown feature of my mobo only kicks in occasionally in the middle of summer (indicating 95C temps
).
Worrying about it being 40 instead of 30 is crazy. Actually to be honest 30 doesn't even sound like a temperature that a CPU can realistically achieve