Have you taken the WordPress 2.7 navigation survey? If so, let's talk about our opinions and what you submitted. If you haven't, go do it now! http://wordpress.org/development/2008/09/wordpress-27-navigation-options-survey/
Personally, I would like to see a top navigation with drop-down boxes. And a naming scheme similar to this: Content, Layout, Settings, Utilities. Simple, intuitive, clean.