off-topic: MPAA doesn't have to mess with ISPs and try to identify who is illegally downloading movies, they can automatically send a warning letter to who ever buys multiple 1TB HDDs 
I don't know about that. There are other reasons why I may need a 2 TB HDD...and will be needing another one by the end of the summer.
Of course we are going to engage in evasive maneuvers if we ever receive such a warning, but I doubt they will directly blame someone :-D,
Dear John Benetton,
We have received word that you have purchased yet another brand new 1 TB Samsung HDD from your favorite electronics retailer. Omedetou gozaimasu
We hope that you don't store copyright infringing content on your brand new HDD and make the same mistake your neighbor P2P-Fred did 
Also make sure that you have assigned a STRONG password for your wireless network access this time and that your scientific data does not contain encrypted hollywood movies.
TY, MPAA
- just kidding -
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If this turns into an external storage frenzy - now that HD movies occupy roughly 4-12 GB, I wonder about 3D movies - they had better revive the 5.25" HDD drives.
Anyone remember the 5.25" hdds? They were the size of an internal DVD drive that we use on desktop cases.
Considering their platter size - without this 2.1 TB limit?? - and number of platters it can hold (I recall 5 platters) you can expect 10 times more capacity with the current technology (I am exaggeration) on a single drive.
Put one of those in the World's greatest server, you are done.