the scope of this is a pretty large. You might be able to do a group video chat style thing, but you could do group a skype chat style thing, but with so many people streaming the video your going to run into bandwidth issues in getting decent quality + no lag with all the feeds. Maybe not you if you have awesome internet at your studio, but not everyone has great net and they will run into bandwidth issues fairly quickly. there is also things like uStream/livestream, but you can't see the other people, only chat via text. And you can't really secure it to people who have paid you either, it's a fairly public thing to anyone who knows the link. So that makes it hard to charge people to watch. Would be a good way to live broadcast for free and have text feedback though. As for hooking into the security cameras that is a whole new thing - without anymore details i would say no. it might be possible but effort to do so in most situations + my minimal knowledge about your setup i would say no.