Here's a portion of our presentation- more on the content of our talk tomorrow...
It is very easy to access Google Docs by creating or using an existing Google (gmail, etc.) account. In Gmail, simply click on the Documents link at the top of the page. You can get started with a presentation by simply clicking on Create New>Presentation. The interface works much like PowerPoint.
From your main Google Docs page, you can check the box next to your document, then select Share and invite collaborators via email.
Your presentation, while open, can be downloaded under the File menu as a PowerPoint file if you would like to add more advanced features such as transitions and animations.