New Deliverance Fellowship Ministries, INC

Hi, I'm new here so be nice My church is looking into starting to broadcast video of our services live and also have them uploaded to our website. I've got a setup built in theory but wanted to check it would work before buying anything. The Setup: 1 x Blackmagic Cinema camera with Canon lens 1 x Blackmagic ATEM Television Studio 1 x Blackmagic Ultrastudio Mini Recorder 1 x Intel Core i7 Mac Mini 1 x Canon 550D running Magic Lantern for clean 1080i HDMI output 1 x Behringer Ultramatch Pro The setup would consist of two cameras and a feed coming from our song lyrics software (easyworship). My thoughts were to run SDI from the Cinema camera into SDI 3 on the TV Studio and then have two HDMI inputs on 1 and 2, 1 from the 550D and one from Easyworship. The Easyworship feed would have the lyrics over a plain green background for chroma keying.  The TV Studio would be connected via Ethernet to the Mac mini for switching control. The SDI program output from the TV studio would be connected to the SDI input on the Ultrastudio Mini recorder and then into the Mac mini for streaming to a service like Ustream.  The HDMI program output would run down to our displays in our cafe area for people with children and the person on reception.  The multiview HDMI out would be connected as usual to a monitor.  We would also be using a Behringer Ultramatch Pro to convert the analogue signal from our mixing desk to the digital input on the TV studio. Would this setup work in general? My main questions are: - Would the Mac Mini be able to handle switching and streaming simultaneously? If yes, would it also be able to record to disk using the provided software too? - Would the program SDI output also output sound for the Ultra mini recorder into the Mac mini for streaming or would I need to have a separate audio feed into the Mac mini? - Does the TV studio allow picture in picture (this would be used to overlay the PowerPoint in the top corner of the program)? Your help would be really Appreciated Thanks I didn't find the right solution from the internet. References: https://forum.blackmagicdesign.com/viewtopic.php?f=4&t=5681 2D Promotional Video