Camtasia, an older version 3 is available for free below. It is not pirated, just their way of getting you to try it. It allows for video and audio recording and good compression.
To register for a key:
http://www.techsmith.com/camtasia/pcpls.asp
To download:
http://download.techsmith.com/camtas.../camtasiaf.exe
You may also want to consider something like Ninjatrader, which is free for charting, simulation and
playback of recorded data.