Monitoring Your Laptop's Health?

paulius_g asks: "I have an eMachines laptop running Windows and I would like to know how today's geeks monitor their laptops caracteristics (CPU temperature, fan speeds, SMART, etc.) There are software to monitor normal motherboards, but laptop motherboards are usually unsupported on these kinds of software. I am in desperate need in such a software as my laptop overheats a lot while the fan is running at a low speed. So, what do you use to monitor your laptop?"