I’m currently the Media Director for an online Culinary Academy that uses almost this exact setup. The one thing we don’t use is Wirecast. I also run the switching software on the same MBP that we use to stream to uStream. We nave not had any issues at all with this setup.
I am curious to hear if anyone has any advice on what software would work well to run on a second computer going into one of the HDMI Inputs on the ATS for videos, graphic lower thirds, etc.