SharePoint Experts has released three new add-ons for WSS

Pls, if you test have a comment, this tools seems to be very useful ;)

Two navigation enhancements (Page edition and XP edition) and a Power Search which allows you to search throughout entire site collections.
PowerNav™ (XP Edition) for Windows SharePoint Services fixes a long-standing problem with SharePoint-enabled sites: Consistent navigation. With this tool, your sites will include a site-wide navigation bar to make sure your quick launch links go with you everywhere. Even more exciting, we've added a "skinning engine" to WSS, enabling developers to create skins for PowerNav™-enabled sites!

See it in action on our live demo site!

PowerNav™ (Page Edition) for Windows SharePoint Services gives you a bird's eye view of your site's contents, its children, and contact information for the page or site owner.

See it in action on our live demo site!

PowerSearch™ for Windows SharePoint Services goes beyond the built-in searching capability of WSS to provide your users the ability to search throughout entire site collections, no need to un-ghost your sites or edit your individual pages -- it just drops right in!

See it in action on our live demo site!

PowerSidebar™ for Windows SharePoint Services is going to be a Browser Helper Object (BHO), or IE Toolbar extension, that will keep you up to date on changes made to Windows SharePoint Services lists as well as your Outlook inbox, contacts list, tasks, etc.

Free "Technology Preview" available now! Show your Outlook Inbox and Tasks on your SharePoint sites! See it in action on our live demo site! (Select it from the PowerTools menu in the PowerNav screen)

PowerUndelete™ for Windows SharePoint Services will be the must have add-on for Windows SharePoint Services. Administrators and end-users will be able to "undelete" documents (with their revision history counting as one big block) and list items! If the user was the original author, she'll be able to undelete her own documents/list items without administrative intervention. The potential support cost savings alone are staggering. Coming by August 31, 2004!