Freeware tutorial and presentation creation software

Was listening to an old webdevradio podcast (which I've just discovered and really like) and Michael mentioned wink, a freeware tutorial and presentation creation software. This captures screenshots and mouse movements that can then be outputted to a variety of formats, including flash swf. This could be quite useful for anyone who does any kind of computer/website training. I know that I do and am definitely going to give it a try on my next training project. I don't think it measures up to Macromedia's Captivate, but hey, this is free, while captivate costs in excess of R3000.