WizPlat NAS-20 has come out with a new NAS storage deal that can satisfy heavy downloaders. Just run the BitTorrent Client on these NAS, and you can get 24/7 PC-less downloads.
What else you get is the standard Gigabit ethernet, up to 4TB (2TB per 3.5-inch bay) in RAID or JBOD configs. what does that means is you can get mirrrored space with reliable backup of everything stored in 2TB. Or else you can use it in non-cluster mode that gives you full 4TB. It comes with standard 2x USB for more storage, FTP server, SAMBA server, iTunes compatibility, and printer servers, and the best part : Integrated BitTorrent client.