I recently migrated from WebCamXP (from a Windows 2003 server) to NCS (to a Windows 7 Ultimate).
I only have 7 cameras for my home, but I bought the 16 camera license for future expansion I really like NCS, and it seems to be easier to configure.
I have been successful implementing a brand of cameras that you have not listed as supporting in NCS (brand SV3C), however all the configuration is manual. I tried using the ONVIF discovery tool, and it finds all of the cameras, but the ONVIF Source path it generates does not work. Instead, I have to use Custom URL > RTSP_TCP > and the rtsp address. This works, but I believe I am not getting all of the features available for some of my cameras (such as PLZ). I see NCS supports many brands out of the box, but not my SV3C cameras. Are there any plans include SV3C cameras? If so, I can help with providing support and configuration files (I am a developer and solutions architect by trade).