I need a speaker output recorder

I’m looking for a program that will record the speaker output on my computer.
My reason: I’n the near future I will be making several importiant phone calls using my computer, and I would like to save the conversations as sound files.

should anyone have any idea as to what I coauld use I would be most greatful

try this: http://www.mp3mymp3.com/

thank you, this will work most excallentley

and I can’t spell