[AV_guy007]

As someone who has pushed webcasts up to NASA's servers its not the setup at the event that is very costly complicated. You need to consider what is serving the content. Do you have a powerful enough server with a fast enough connection? If not make sure to consider the costs of that.

Personally I would not pay for webcasting. I think a better idea would be to talk to people in the community who will be at events and get a network of people that can push a stream to your server, and share the content that way. there is no reason to pay for a crew to travel when there are already people there. Also don't forget you need a good internet connection at the venue which usually means talking to the event planners far in advance.