As always, don't install all of these unless you want to decrease your blog's response time.
My Page Order - A simple plugin that allows you to easily rearrange your pages into whatever order you'd like.
pageMash - Gives you AJAX control over the order of your pages and the ability to hide ones you don't want to be seen.
Page Management Dropdown - Allows you to choose which page to edit from a drop down menu as well as gives you the option of starting a new page. Works well for WordPress installs being used as a CMS. Must be used in conjuction with an admin drop down plugin.
Page Restrict - You can select all, none or some of your pages to be viewable only by registered users. Great for sites being used as a CMS.
Page Template Extended - A simple plugin that allows you to build templates unique to any page by simply building it a PHP file named for its ID tag.
tags4page - tags4page allows you to finally add tags to your pages as well as your posts to make them appear in tag clouds and be friendlier to search engines.
Wordpress CSS Drop-down Menu - Allows you to create drop down menus out of your pages up to three categories deep. Can also tell WordPress in the admin section to hide pages.
Xavin’s List Subpages - Allows you to display either all of the subpages, or just the ones you choose, on the parent page.