Sean just bought a Canon T4i DSLR and needs to learn how to use it. Leo says that to get started, just turn it to program mode and use it like a point and shoot. Then experiment with it. The DSLR will grow with him. Lynda is a tutorial site that has some great digital photography courses. It's a paid site, but the first week is free. CreativeLive is another great site to learn. There's always YouTube, too.
He also wants to know how to set up Network Attached Storage (NAS). Leo recommends Synology. He can get them very affordably and the software is great.