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
Best Answer
Actually, I'm pretty sure I remember Husky explicitly saying he was using FRAPS, though I don't recall in which video, so I can't verify it.
I think that if you encounter skips or stutters you just need to make sure that all other applications are disabled, and if that's still not good enough then maybe you should think about upgrading your system - recording high-resolution videos while playing a game is not an easy task for the computer.
You can also find FRAPS tips online; for example, recording to a different physical hard drive than the one used for the game is supposed to be great for performance.