For its newsletter subscribers only, newegg offers the Western Digital Caviar Black 500GB Serial ATA 6Gbps 3.5" Internal Hard Drive, model no. WD5003AZEX, for $84.99. Coupon code "EMCNJNB36" cuts it to $69.99. With free shipping, that's $0.14/GB and the lowest total price we could find by $10. This drive features a 64MB cache and runs at 7200 rpm. Deal ends January 14.