I tried FRAPS which makes great (albeit HUGE) avi files however there tends to be random times (ever 3-6 minutes or so) that the audio will skip/blup or the whole video will freeze for a second or two during playback. I was thinking about maybe going into windowed mode and using CamStudio but it only had the option to record windows sound OR mic, input not both.
The idea is to capture both voice over as well as game sound, and in the end be able to convert to a good quality YouTube video. Quality is the concern, for an example of good quality see: http://www.youtube.com/huskystarcraft.
EDIT: Yeah it could be my system causing the hiccups in FRAPS..
Thinkpad T510, i7 2.67ghz, 4GB of RAM, with this card: http://www.notebookcheck.net/NVIDIA-Quadro-NVS-3100M.24738.0.html