I'm new to wowza and streaming media in general and need to get some classroom ip cameras to stream over my Wowza server. I've got Wowza installed but I'm confused about how to proceed next. It looks easy to use Wirecast to get things running but that costs money. Can I do it with with nDVR and/or Transcoder? nDVR says its a recording software but I can't find how to set the source and tell it to record?