I had about 300 movies (around 500GB) on my external hard drive (Western Digital Passport). I used to keep this connected to my laptop and stream movies off of it to my ATV2. Well I accidentally dropped it and now all my movies are gone. So I wanted to know how you guys keep your movies? External hard drive? Mac Mini? On the actual computer? Do you back up your movies twice? I ask because keeping all these movies on an external hard drive seems pretty risky especially after my experience. Also, what kind of external hard drive do you most of you use?