Western Digital WD20EARS Caviar Green 2TB Internal Hard Drive for $99.99 shipped.  Valid on 7/19 only and while supplies last.  Here is a screenshot for your reference.  This is part of WD’s GreenPower lineup.  It comes in OEM packaging, which means no pretty retail box but is otherwise identical.  Most places have this internal 2TB hard drive for about $119.
This deal has expired as the price has been raised. Congratulations to those able to get in on it.