Mike89: When people talk computer CPU temperatures they talk in Celsius. I think Core Temp offers a Fahrenheit option.
Celsius is pretty easy to learn. Head to Google and type in:
70C in F
and it will do the conversion for you. Most of the time your CPU will be between 40C and 70C so write a little chart out every 5C and within a week, Celsius will make sense. Water freezes at 0C and boils at 100C (more or less). Nice and simple.
newtekie1: Core Temp is also offering a feature similar to this in his latest beta. I might add this feature some day but it's still a ways in the future. Generally if your computer is stable then the core temperature of your CPU is just a number. I've run Prime Small FFTs for 3 hours with the CPU fan turned off at a core temperature of 98C and nothing bad happened. You only need to be concerned about your core temperature if your computer is crashing and if it crashes then the color of your temperature icon before it crashed isn't really useful information.