Presentation topics

Here are some ideas for presentation topics for our group. Please add to the list - and indicate if it's a request for the presentation, or if you can offer to give the presentation.

• Techniques for CSS rollover buttons (group discussion with contributions from several would be great. I will offer to contribute/demonstrate a few techniques)
  
• Photo gallery techniques (request)
  
• Demo of how to customize the layout for a CMS. This could be revisited periodically for different CMS's like: Drupal (request), Mambo (request), WordPress (can present), etc.
  
• Discussion of tools we find useful/important in our part of the web world (group discussion)
  

I would like to see some discussion on Open Source projects and how they can be integrated into sites to add features. Topics could range from customizing these applications to fit your needs to how we as web developers might contribute to the Open Source community. I know that I personally have used many Open Source projects in my web sites and they are extremely useful. I'd like to hear how other people are using them and what they are doing to contribute.