Admin Bar Hopper is a plugin that dds another dropdown menu to the WP Admin Bar, with quick links to Hop To the various parts of your site. So while you are logged in, any Page / Category of your site can be just 1 quick hop away. A Settings page lets you control which areas to add to the “Hop To…” dropdown menu.
Requires WordPress Version: 3.1 or higher
Download and info: http://wordpress.org/extend/plugins/admin-bar-hopper/