"One of the greatest innovations in Windows Sharepoint Services v3 and Microsoft Office Sharepoint Server 2007 is the integration with Windows Workflow Foundation, a core component of the .NET Framework 3.0.", according to Serge Luca in the introduction blog post of his tutorial series on creating workflows for WSS v3 and MOSS 2007. These are the first 9 steps of what will become a 20-step tutorial:

Serge promised to continue his tutorial series as soon as possible. Serge is a Belgian MVP for Windows Workflow Foundation.