For its newsletter subscribers only, newegg.com offers the Western Digital Caviar Blue 640GB Serial ATA 3Gb/s 3.5" Internal Hard Drive
, model no. WD6400AAKS, for $69.99. Coupon code "EMCZYYS37" cuts it to $49.99
. With free shipping
, that's $0.08/GB, ties our July mention, and it's the lowest total price we could find by $4. It operates at 7200 rpm and has a 16MB cache. Coupon expires October 11.