Face it, we all have more computers in the house. Typically a game PC, downstairs a work PC, and I know a lot of you also have a HTPC. Within that context one generic consensus is that we have a much larger demand and requirements for storage.
Now to leave a power hungry PC on to share your files over your internal LAN is a rather expensive thing to do, especially when you have it activated 24/7. A good alternative and solution for sharing data is a NAS unit.
NAS (Network Attached Storage) units are often small, do not use a lot of power, are highly configurable, offer redundancy as some models even can handle RAID internally. Patriot just entered the NAS market with a simple affordable NAS unit called Corza. Their product supports two HDD's setups, RAID 0/1, USER and USERGROUP based access, FTP server, Hot swappable drives, really the most essential features a NAS unit should handle, yet priced really nice.
Check out the Guru3D review.