Update, 11:15am: DEAD!
Seagate 4 TB Internal Hard Drive Linky
Shipping is approximately $8.80 on one, and increases slightly for each item added.
-Impressive 4TB storage capacity for bulk-data applications
-Sixth-generation drive technology with 6 Gb/s SAS interface
-Best-in-class rotational vibration tolerance ensures consistent performance
-Improved power and cooling efficiencies with low power consumption and on demand Power Choice technology
-Multi-drive firmware maximized for enterprise RAID system availability