Hi I've been wondering about doing a small video tutorial and was wondering if anyone can recommend a good screen capturing soft for doing it. Hopefully not very expensive.

these are free:
http://camstudio.org/ [camstudio.org] - Win only
QuickTimePlayer - mac
Record my desktop - Linux

Microsoft Expression Encoder 4 is free to download and includes screen capture. It's a bit more stable than camstudio I find, but is a two step process since the capture is to a not widely understood proprietary format that can then be converted to e.g. WMV. All my videos are recorded and then converted using Microsoft expression.

There is also Open Broadcaster Studio [obsproject.com] which is cross platform and open source.

Thank you guys for all the recommendation. I'm glad to see there are many free alternatives.