Formatted Capacity:
3x 298 GB (1 system, 1 for daily backups, 1 for iTunes, and Uncompressed Audio Files: Cubase, Line6 raw files).
1x 465 (external backup)
1x 223 (compaq laptop)
1x 223 (Hp laptop)
1x 465 (backup for both laptops)
1x 465 (off site backup) - my brother's house
1x 38 (old IBM NetVista - used to test hardware only)
Total: 2.7 TB. (formatted)
Add flash drives, ipod's, iphone, Ps3 (80), and it keeps going up.
As a self employed Comp. tech., and musician / music teacher, the large storage is an absolute necessity.
It may seem excesive for 1 person, i must admit, but a 4 min guitar recording (.wav) can be over 100 MB before mixdown. And thats just one track.
And in my line of work Everything gets backed up, every day.