If you haven't already come across the DotNetVideos.NET website or haven't checked it out, then you need to. He's basically taken many of the Data Access Tutorials from the ASP.NET website which were not in video form, and he's placed them in video form. But he's broken them down into very short videos which you can go over again and again at your convenience. There are over 100 of these videos that are a great resource and reference.