Don't have time to read the documentation for the upcoming Drupal 5? Then check out the video by the folks at Lullabot which includes the new features in Drupal 5.

This video gives a quick overview some of the new features available in Drupal 5. Covered items include the installer, the new theme, the new administration interface, the new status page, module page and installation improvements, improvements to user, content, and comment pages, administrator created content types, JQuery features, url filter, performance improvements, and a brief look at some prominent Drupal sites. More...

Kudos to Jeff Robbins and company!

Updated: I can't believe I missed this the first time around.  Lullabot also has a video on Installing Drupal 5.  One of the new feature for Drupal 5 is it now has an auto-installer script for both mySQL and postGres databases!