PataguccimaneI'm definitely leaning towards raid
I recommend getting a NAS so you can access your files off any device on your network and have a live-time backup of your Mac, or even over the internet. I'm rockin a WD MyCloud 4TB version and it suited me quite well until now cause I've filled it up so I'm probably going to build a NAS probably in raid 10 so I got the speeds of raid 0 and the redundancy of raid 1. The MyCloud is great cause you can access your files from anywhere basically and its great for sharing bunch of footage with other people with a link directly to your NAS without having to upload the files on some site. Also heard some good stuff about the Synology NAS but never tried it myself.