Final answer:
The most suitable video-in peripheral devices for non-professional editing are USB or Firewire due to their accessibility and high-speed data transfer capabilities.
Step-by-step explanation:
The correct video-in peripheral device suitable for Michael Abada, who is not a professional editor and needs to edit over 10 GB of digital raw footage for a documentary on the homeless population in America, is USB or Firewire. Both of these options provide high-speed data transfer from digital cameras or other video sources to a computer. USB is very common and would likely be the most accessible for someone who is not a professional editor, though Firewire (also known as IEEE 1394) is also well-regarded for its speed and reliability in transferring large video files. SVideo and RCA connectors are primarily used for connecting video devices to televisions or other display devices and do not typically support data transfer to a computer.