Until January 7, Techsmith is offering a free version of Camtasia Studio 3.1.3 (the latest version is up to version 5.0). The download site says it is an “exclusive offering for PC Plus Magazine readers from the United Kingdom” but another site that links to the deal says that they “have confirmation from Techsmith stating we have now extended the offer to everyone.” This older version apparently will not with Vista, and it also will not have all the improvements found in versions 4 and 5, but my memory of using it was that it was still relatively easy to use and could produce good screencasts. If you had been planning on buying the latest version of Camtasia Studio, install this free download and you should be eligible for the upgrade price.
In addition, if you have been looking for a more robust screen snapshot program, Techsmith is also offering an older version of SnagIt 7.2.5 (current is 8.2) for free. For both of these offers, you first need to download the software and then register for the free key. Remember, these offers expire January 7, 2008!