I'll be going on a bit of a tour later this year. Starting to fill my schedule with DrupalCamps.
In most cases, I'll be talking about Workbench for Drupal 7.
If you're holding a camp and need someone to discuss any of the following topics, just let me know:
Buy your copy of Drupal 7 Module Development today!
It includes my detailed chapter on Node Access in Drupal 7.