I made a video guide for 4.0.6. And intend to make individual spec guides at a later date. (Similar to my previous)

This guide covers aspects of gearing for all three specs. The areas covered by the guide are:

Stat priorities
Haste Soft Caps
Gemming
Enchanting
Dark Intent

This is intended for all skill levels of warlocks. It is essentially a distillation of information available in guides like those hosted on MMO Champion and Elitist Jerks but in a video form that may be easier for some to digest. I will work on specific spec guides but all info in this guide applies to all of them.

http://www.youtube.com/watch?v=NLY6dVI95E4