Greyhole is an application that uses Samba to create a storage pool of all your available hard drives.
Amahi Netboot allows you to boot a computer on your local network off of an image stored on your HDA.
Nextcloud is open source file sync and share software for everyone from individuals to large enterprises and service providers.
Disk Wizard is an application to manage the disk drives and partitions.
CouchPotato is an automatic NZB and torrent downloader. You can keep a "movies I want"-list and it will search for NZBs/torrents of these movies every X hours.