CPU Temperatures?

[a-10tankkiller]

What is a good range to keep your CPU temp? My Asus software is showing the CPU temp at 43 deg C., and my probe sitting inside the case shows a temp. of around 33-36 deg C. Are those reasonable temperatures? Anything I can add to drop it?
Thanks

[DarkFury]

43C is a perfectly fine temp for a CPU (especially the Intel Core 2s)

Start worrying if your temps are consistently above 65C... and at 70C consider shutting it down.