As one of its daily deals, Best Buy offers the Western Digital 1TB Caviar Blue Serial ATA 6Gb/s Internal Hard Drive for $39.99 with free shipping. That's tied with last month's mention and the lowest price we could find by $10. This 7200 rpm hard drive features a 64MB cache. It also includes your choice of a $20 Shutterfly Credit or 8x8" Photo Book. Deal ends today.