Thanks for recommending SkypeCap.

It records skype conversations easily.
But I'm having
trouble with recording audio with video 
(at 25 Fps): it always records in PCM (regardless of the audio codec chosen), and on playback in WMP11 the video track (Indeo Video 5) of the video clip is much faster than the audio tracks.
I've tried opening my video clips in different media players (DivX, MPlayer, VLC, etc), and all that has done is render 2 tracks (video, and 1 audio) on each clip unplayable. I think I've ruined all my videoclips.
Can anyone help an IT dinosaur like me

?