[colby65]

For screen capturing of PowerPoint + Audio, you can look at software like Open Broadcaster Software (OBS - Open Source), Camtasia (Paid, but user friendly and is a simple video editor software), Bandicam, and others online.

You can wire a camera into your computer and actively record into software like Camtasia, which would allow you to make it your all-in-one editing software, but it will require a little configuration knowledge