If you want to live stream, it's free: https://obsproject.com/
It also records, but I use Bandicam for recording because I had bought it a while back: https://www.bandicam.com/

If you want to edit, this is ok for free, but it crashes a lot: http://www.openshot.org/download/

I use those softwares for my youtube / steemit videos. My recent videos use a C270 Logitech webcam with its integrated microphone.