Brief videos about the various sections on left side of Orchestrator client and what you might use them and things to look out when you do for eg.
Also maybe a bootcamp series like http://communities.vmware.com/community/vmtn/desktop/view/bootcamp would be useful for covering topics in slightly more detail.
Topic 1: Creating a basic workflow, setting attributes, parameters and executing it
Topic 2: Reusing existing workflows, actions, triggers in your workflows
Topic 3: Resources, Configurations, Web Views
Topic 4: Packaging it up for sharing