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.