Code for Silverlilght dashboards from SharePoint 2010

Hi, I am new to C# and Silverlight but very familar with SharePoint. Often times my clients have requirements they want to visualize data, update data from a Silverlight interface. The datamodel is always either a parent child relationship between two lists or invloves more than two lists. Can anyone provide me some good examples of Silverlight dashboards built purely for Sharepoint 2010 data sources. I need some concepts and thier source code with clear explanation of the code. i.e what the lists are, how the dashboard UI is designed. and what each code block is doing. The dashboards should be interactive. I should be able to reuse your code to create the xap file by creating exact datamodel on my sharepoint sites. I am looking for at least 10-20 sample dashboards.