If you don't have problems with D-Link product, maybe you can consider DNS-320L http://www.dlink.com/uk/en/support/product...orage-enclosure.

If i remember correctly, it only cost me RM235 for DNS-320L and RM225 for WD RED 1TB. Quite reasonable price for me.
As price is way very cheap compared to Synology, so don't compare the app and software to Synology. This NAS-320L come with very basic app but still bundle with torrent downloader, ftp for file sharing, and CIFS/SAMBA/NFS for local file sharing.

And if you dare enough and have basic linux for simple editing and package installation, you can install other software to utilize it.

For my setup:

1. I share NAS drive to my PC for easier access. Also for my android. Can streaming movie.
2. Enable FTP to share movie to my friend through public / internet.
3. Install fun_plug to enable / easier to install package.
4. Install Transmission to replace stock torrent downloader (older version transmission), for torrent download.
5. Install Automatic for Transmission to automatically download TV series / Anime which come out weekly. This can be done by preconfigured rss for download link.