Presentation topic ideas - Volunteers for a September presentation?

Here's a list of topics that have been brought up in previous BDUG meetings. If you'd like to present or add topics, just add some comments below:

• PHPTemplate / Theming tips (how to find variables when you need them)
• Integrating Flash and Drupal
• jQuery / Javascript the Drupal way
• CSS and IE tips (round-table discussion about tips and tricks and in general how not to kill yourself catering to the devil)