I go over the major points to playing and being successful as a Destruction warlock in Cataclysm.
http://www.youtube.com/watch?v=_19s8...el_video_title - Destruction guide
My friends asked me what the point of making a video about something that anyone could just find by looking up on elitist jerks, wowhead, or here on mmo-champion - and while it's true that the written guides are excellent, I think many people would prefer to watch a video instead. For instance the Tankspot videos showing how to overcome an encounter aren't exactly necessary when you can just have someone read the detailed explanation, but most people seem to prefer watching the video instead.
I have other guides on my channel including an overview of the PvE related changes in 4.0.6 and a detailed guide to Affliction and Demonology.
http://www.youtube.com/user/MaanaWoW?feature=mhum - youtube channel