For those that haven't yet looked at Powershell, please do. Aside from being an extremely powerful means to interact with SharePoint and control items that are not available from the web UI, it is more than likely that as with Exchange, Powershell will be the means of interacting with SharePoint v.next (as opposed to stsadm)
Some links to interesting resources and example scripts....
http://www.u2u.info/Blogs/karine/Lists/Posts/Post.aspx?ID=9
http://darrinbishop.com/blog/archive/2007/04/08/54.aspx
http://blogs.flexnetconsult.co.uk/colinbyrne/PermaLink,guid,1665700b-e0de-4b8a-bb1c-014d6fbcf2db.aspx
Powershell download
http://www.microsoft.com/windowsserver2003/technologies/management/powershell/download.mspx
Useful Powershell editor
http://www.powergui.org