One of my favorite presentation tool is Zoomit 3.03. It allows for a presenter to zoom in to a section of the screen and draw on it as he or she is presenting. It also allows you to type on the screen. The newest release 3.0.3 was released today and it has a cool feature, which allows a presenter to mark a break with a countdown clock.
If you’ve ever done a web meeting at all, this is a must have tool that happens to be free!
Download it here: http://technet.microsoft.com/en-us/bb897434.aspx