SharePoint Developer Downloads from MS
There are a lot of good downloadable resources on the Sharepoint (MOSS/WSS) development available from Microsoft. Review the following.
Windows SharePoint Services 3.0: Software Development Kit (SDK)
SharePoint Server 2007 SDK: Software Development Kit
Visual Studio 2008 extensions for Windows SharePoint Services 3.0, v1.3 - Mar 2009 CTP
Ten Themes for SharePoint in VSeWSS Projects
PPTs and Demos for Introductory SharePoint Developer Modules
Hands on Labs for Developing Applications on Windows SharePoint Services 3.0
SharePoint Guidance - November 2008
Sharepoint Developer Central Site
