There is a very good discussion on the TidBits-Talk list about finding a new CMS for the publication. They are looking to replace their home built system as they move to an X-serve/OS X system.
I've worked with several systems including Clay Basket, Userland's Frontier (versions 4-7.x), Zope (2.x), Nuke derivatives and now Drupal. Each has something powerful to offer.