This is an updated tutorial about an awesome lighting add-on that helps lighting by allowing you to simply point and click on a surface location where you'd like lighting to appear. This is a paid add-on, but it allows for fast and accurate lighting and so I felt it was worth doing a tutorial on.
If you'd like to purchase LightWrangler, here is the link. http://blendermarket.com/products/light-wrangler?ref=1142
00:00 Introduction
00:23 Basic operation
02:50 NEW Light Customization (HDRI masks, Gobos)
04:49 NEW Specular (Default) vs Diffuse (Normal) Mode
08:35 Orbit Mode