Sometimes it helps to see an example to get you going. From the seminars and webcast's I've been working on I get requests for the source code. In this spot I've put together some code samples that you can download and try out. Just a fair warning, these are links to code examples that are posted as is. I'll answer questions about them, but they are meant as examples, not as finished product code...
2009 Code Samples 2008 Code Samples 2007 Code Samples 2006 Code Samples

Older stuff