I am finally getting around to setting up to my 2012 i7 mac mini to start doing some video editing of family movies. I can't upgrade the internal HD's big enough to do what I want so I was going go the external route. If I went with the NAS route it would be a a QNAP ts451 and be connected to a LAN switch as would the mac mini. I could also grab a USB3 external drive or an older firewire 800 RAID drive directly connected to the mac mini. Any suggestions on what would be the fastest and most reliable?