newegg offers the Western Digital Caviar Black 4TB Serial ATA 6Gbps 3.5" Internal Hard Drive, model no. WD4001FAEX, for $329.99. Coupon code "LATESTTECH1" cuts it to $299.99. With free shipping, that's $0.07/GB and the lowest total price we could find by $22. This drive features a 64MB cache and runs at 7200 rpm. Deal ends January 14.