A lot of these floating around but this is the outright cheapest.
SATA1 RAID1 NAS with many features including 1tb drive support, 2 drive bays, torrent web server.
Free HDD is 500gb seagate barracuda 16mb cache SATA2 7.3krpm
Free HDD is worth £30.
£90 for a 2 bay NAS with torrent server seems alright to me
£131.11 inc Delivery