Let's spread the word of "SharePoint".
There is a whole set of trainings targetted for all kinds of audiences on the various features of Microsoft Office SharePoint Server 2007. Thought of providing a consolidated list for the benefit of one and all (explore them at your convenience and understand why MOSS 2007 is being deemed as a "killer application").
End user training videos : http://office.microsoft.com/en-us/sharepointserver/HA102488011033.aspx
Virtual Labs @ Technet : http://technet.microsoft.com/en-us/bb499670.aspx
Virtual Labs @ MSDN : http://msdn.microsoft.com/en-us/cc707678.aspx
SharePoint Tutorials : http://blog.sharepointhosting.com/Downloads/SharePoint-Tutorials.aspx
SharePoint Screencasts: http://www.sharepoint-screencasts.com/