It's with great excitement that I get to be the first to announce the initial release of the Microsoft SharePoint Administration Toolkit!
this first release contains two very useful tools which are both supported on Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007
The first tool, called "Batch Site Manager", adds new functionality through Central Administration. From the new "Move, Lock, and Delete Site Collections" page on Applications Management you can schedule bulk operations against site collections in the farm—including moving site collections between content databases
The second tool is actually a new command in STSADM called "updatealert". This command will refresh all alert URLs in a specific site collection, which is extremely important should you change the URL of a web application or after an upgrade
Source : blogs.msdn.com/sharepoint