I need a System to handle Backup & Streaming... Please Advice Needed

[cpmame]

I need a system to handle 3TB of my digital asset (songs, pictures, video, movie, personal document and software tools), and I expect it will grow to 6-8TB in about 3-5 years. This system will act like a centralized media storage where it can streams the multimedia contents to my living room and also to all other computers connecting to it (a PC and iMac). This system will act like a backup device to my PC and iMac, where all backup process is performed automatically per schedule. I also need some kind of redundancy to protect my digital asset in case of HDD failure in this system. I prefer something simple & easy to manage.

What choice do I have? D-Link NAS? RAID? HP MediaSmart Server? Please advice

 

[necine]

Just have your main computer back up to a nas, and have your main computer in a raid 0 or raid 5.

Or backup to a linux or whs computer in raid 5 or 0.

That's what I'm planning.