I am setting up a freeNas system but the more I read about various hard drives the more confused I get. Basically I want to backup audio and video files from my main PC and plan to get about 4 1TB drives. Reliability is more important than speed. Would something like the Western Digital Red WD10EFRX 1TB IntelliPower ($99 on Newegg) be a better choice, or the Western Digital Green WD10EARS 1TB 5400 RPM (also $99 on Newegg), be a better choice for this purpose. The red drives do have a little better warranty (5 years as opposed to 3 years). Otherwise I am using a Gigabyte GAB75MD3V mobo, Intel Core i3 Ivy Bridge processor, and 8 GB of memory. Thanks.