Ok, I have finally moved over all the content from my old Plone site to Drupal. I have to say that Drupal is a little different from Plone in terms of managing a Website. I think that the Plone approach to creating and editing pages and workflows is more intuitive than Drupal. Drupal however is much faster, uses less resources, and far easier to skin. Overall, I am happy with the move to Drupal. The Drupal blog and forum modules are nice too.