Western Digital Caviar Green 3TB 64MB Cache Internal Hard Drive for $159.99 shipped after promo code EMCNEGJ35.  Here is a screenshot for reference.  This is part of WD’s GreenPower lineup, which reduces energy usage.  It features 64MB cache and uses SATA 6.0Gb/s interface.  Note that it comes in OEM packaging, which means no pretty retail [...]