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Pick the one with the best warranty for your budget. No platter-based hard drive is better than any other.
 
So I hear everyone should back up their HD.

I have a 2011 13 mbp 320hd. I'm looking for a external hd so I can back this hd up just incase... I'm in Canada, looking to spend around 50-100$.

What about this?

http://www.futureshop.ca/en-CA/prod...spx?path=a72a543276a6a9a5b9b8ea0693838088en02
If you're going to be using the drive strictly for backups, USB will do, but if you plan to use as storage for large files, go for a FireWire enclosure, it'll much much faster.

With that said, that enclosure and drive looks just fine.
 
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