David

Get dual hard drives. If something happens and you need a backup, that's where it gets stored. If you only have one hard drive and something happens, you're screwed. No backups mean you have nothing to go back to.

CentOS is what is installed by default. Also, without knowing more about what you're going to do, it's hard to tell you what is best for you. Just saying you'll have music downloads doesn't really say much about the site, the users, or anything.

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