Creating a SharePoint state machine workflow

Most examples that you find on the web about SharePoint workflow development seem to use the sequential workflow type. Here's an example of a state machine workflow:

• Creating a MOSS state machine workflow - Part 1 of 4 : Concepts and planning
• Creating a MOSS state machine workflow - Part 2 of 4: Creating InfoPath forms
• Update to Creating a MOSS state machine workflow  Part 2 : Initiation and Association Form Trap
• Creating a MOSS state machine  workflow - Part 3 of 4 : workflow development

Happy SharePoint-ing ...