CamStudio
About CamStudio - Desktop Screen Recorder
CamStudio records activity from your screen and audio from a microphone into AVI video files and can also convert the AVIs into Streaming Flash videos (SWFs) using its built-in SWF Producer. Website: www.camstudio.org
CamStudio 2.0 (english)
CamStudio 2.0 Suomi (finnish, install english version and replace the files with these, translated by me)
And...check this out:
www.uvnc.com/screenrecorder, they are making it even better and faster