D-Link 2-Bay Gigabit Network-Attached Storage (NAS) for 3.5″ SATA Drives for $83.21 shipped after a $30 rebate. It has a FTP server for remote access and supports different hard drive configurations, including standard, JBOD, RAID 0, and RAID 1. It usually goes for $129.
Originally posted earlier, this deal has been revised slightly and is just a friendly reminder.