Does NetCam Studio support Logitech HD Pro Webcam C920
Yes it does, but search on c920 in this forum and you will find more important information.
Might be easier to just ask what camera you recommend
I plan to use for video calls
But more importantly as a home security system and / or nanny CAM
Something that works well with NetCam Studio software but reasonable priced
Thanks in advance
Sorry for confusing more than clarify . I use Logitech for video calls myself so that is fine. If you use only one C920 it is no problem. Netcam Studio have a limitation for using two or more USB cams of exactly the same model. Then we recommend WebcamXP.
In your case one C920 and Netcam Studio will be fine.