Be sure to check this article out:
http://e-learninglist.co.uk/whitepapers/273Whitepaper_outsourcing.pdf
It seems like so many organizations think that having all development done in-house is so much cheaper.  I've worked on several projects where this was just the opposite.

In this article by Bersin & Associates, it describes how they selected to use Articulate over Lectora for SMEs.   The throught was the SME/Trainer had to be more tech savy to use a tool like Lectora.  However, it appears once the SME/Trainer was trained on software, they could deliver courses with a 3-week turn around.
http://e-learninglist.co.uk/whitepapers/101LTIArticle6-25-04.pdf
 

I discovered another free conferencing tool.  It is Yugma at https://www.yugma.com/
Seems similar to Dimdim.