These short video clips are just over 10 minutes each and support the SDK articles Walkthrough: Creating a Custom Project Server Web Part and How to: Write and Debug a Project Server Event Handler. Both of these videos show Visual Basic being used – and the articles show C# for both and also VB for the event handler example. They can be found at the following links:-
Creating Custom Web Parts for Project Server 2007
Writing and Debugging Event Handlers for Project Server 2007.