Enjoy
When you say you like to use windows apps to tweak your CPU and FSB and voltage....if I am reading it right.....you are talking REAL TIME changes, within a single instance of the windows evironment. (ie no changing and then restarting, but changing and testing)

Then when you have it figured out to your liking, THEN you sort of hard set those numbers in BIOS. Correct?

May I ask what application you use to do this?