English:
I will be posting more lighting information here.
Jordi Bares has put together a valuable transition guide for users coming from XSI and moving to Houdini. Coming from any package these guides are very valuable.
Here is a collection of several lighting guides that are very helpful.
Jordi Bares website
Houdini Guides - Hosted at the SideFX website.
Check out the links at page 45 in the Chapter 3 Lighting Guide.