As one of its daily deals, newegg offers the Western Digital 2TB WD Green Serial ATA 6Gb/s 3.5" Internal Hard Drive, model no. WD20EZRX, for $79.99 with free shipping. (Amazon offers it for the same price.) That's $0.04/GB and the lowest total price we could find by $9, but we saw it for $8 less in August. This drive purportedly consumes up to 40% less energy than standard mechanical drives. It features a 64MB cache. Deal ends today.