Here's a list of meeting topic ideas
Meet & Greet
Show and Tell
Specific Modules (Views, CCK, Ubercart, etc...)
Drupal Distributions (Atrium, Pressflow, DruaplEd)
Top 10 Modules
Top 10 Modules you should be using
Underlying Technology briefings (MYSQL, PHP, Apache, etc...)
Ignite sessions (5 minute sessions by members)
How to's (build a module, theme, customize, etc...)
Basic Installation
The other CMS's (Joomla, Plone, LifeRay, ROR, Wordpress, etc...)
Connecting to outside applications
Future upgrades
Hackfest
Test > Staging > Production configurations