Equations?

Hey all. ill keep this kinda breif cause im deep in some design work. I ditched the disire to build a cooler on the cheap in favour of putting some of my machining and solder skills to the test this winter.

All i need is a few links to thermal conduction theory and equations to do the math. I know some of you, those who write the crazy articles that make me go huh? know this and i would like very much to understand this so i may go on to work on my own cooling sollutions.