Glad to hear you are tinkering with Houdini and that FBX is working well between your apps. There are some new “First Steps” lessons about Houdini basics on the sidefx.com website:
http://www.sidefx.com/index.php?option=com_content&task=blogcategory&id=202&Itemid=361
The Rendering lessons may help you get started. If you have any other questions then please let me know. It is strange that the rendering is giving you so many issues. Like any app getting started can be a challenge but Houdini is well worth the effort (and Houdini jobs are out there for the taking which is good for all).
Robert


