Tool for saving screen + audio to video?

Tools like these are commonly used when making video tutorials or Software Demos. The only free one i know is CamStudio, it does the job and does it better if I download and add the LossLess Codec to it, but still, i don't like some strange behavior this tool has like:

- Weird messageboxes when pausing/stoping video using hot keys, looks like something added when debugging and never removed.
- If the tool is minimized window state cannot be changed to normal or maximized until the recording session ends, then stopping video can only be done via hot keys.

(All this using windows XP)

There are other known tools like for example Camtasia but those aren't freeware. Anybody knows anything better?

CamStudio is one of the best ones that I have used. If you have Microsoft Expression Studio, there is also a great tool in there that does screen recording. Best of luck.

fraps can record screens, however i am unsure if it works in xp.