Buy a Netgear NAS Duo 2150, on sale at Newegg for $360 with a $75 rebate. Comes with a single 500GB HD and at the same time buy a 1TB drive and install in the NAS.
Now, when you rip, everything will be automatically mirrored. When you fill the 500GB drive, buy another 1TB drive (or 1.5TB) and remove/replace the 500GB drive (it's all hot swappable) then your NAS will have a capacity of 1TB.
Now, when you rip, everything will be automatically mirrored. When you fill the 500GB drive, buy another 1TB drive (or 1.5TB) and remove/replace the 500GB drive (it's all hot swappable) then your NAS will have a capacity of 1TB.