Free Tutorial Creation software

I search free Tutorial Creation software mit sound and scren record - like Camtasiastudio for free tutorials.
Exist any SW, which can save the file in avi, mov or flv?

Thanks for tips :).

get SnagIt http://www.techsmith.com/snagit.asp

SnagIt is not free, I know techsmith products, thanks.

ok try this =) http://www.debugmode.com/wink/