Light Placer allows you to interactively place lights in the viewport, base on where you want the diffuse and reflection ray. You can simply click on an area where you want the highlight to occur and the light will be moved accordingly.
https://vimeo.com/showcase/5860456/video/363448900
You can also save Presets of Multi Light Setups.
https://vimeo.com/showcase/5860456/video/510330902
And control all the lights from one place via the lightbank.