I can't even think of what I can do with 1 terabyte. Buy.com says you can hold 125 hours of HD movies or over 75 hours of DV video. That's a heck of a lot of movies to watch! You can connect this to USB 2.0 or FireWire400/800, and it comes with a 3 year warranty. WESTERN DIGITAL 1TB EXTERNAL HARD DRIVE DEAL