I am storing videos and audios - I currently use 2 Maxtor External Drives (1 TB and 750 GB), and 2 internal Western Digital Green drive (1 TB, 320 GB I think) for my storage needs...
Things are fine - but of course I want my storage to be more organized. The external drives are for backup. I don't use online backup because I am concerned about bandwidth - my own internet bandwidth.
It would be great to have a 10 TB drive with 10 TB backup. I think that would last me for a while.