I creating a training portal in Sharepoint 2010 for users to go and help themselves to solutions to problems and how-to documents. We are also creating some simulation videos as an alternative option to documents. Our aim is to have them both appearing alongside each other. For instance, when you expand the group within the library and see the list of documents "Howtodothis.docx" and "Howtodothis.mp4" will appear next to each other. I realise I could do this with an asset library but I also want to include content types with the library, so that when people create a new document it matches the template we are creating.