The Drobo suggestion is a great one, especially if you want constant backup without having to think about a backup schedule. The only downsides are the cost and that you have everything committed to one physical device that can be lost in a burglary or fire.
A simpler, cheaper way to do it is to plug another 1 TB drive into the Mini, either Firewire or USB, and use a backup application like SuperDuper to clone your primary drive on a regular schedule. You can buy a good quality external 1 TB drive from LaCie or Seagate for $100-120, back up every Saturday morning and likely never lose more than a week's worth of ripped files.
The advantage of having a separate physical drive is that you can keep it in a separate location when you're away from your system for awhile. As always, the choice comes down to which set of compromises you're most comfortable with.
A simpler, cheaper way to do it is to plug another 1 TB drive into the Mini, either Firewire or USB, and use a backup application like SuperDuper to clone your primary drive on a regular schedule. You can buy a good quality external 1 TB drive from LaCie or Seagate for $100-120, back up every Saturday morning and likely never lose more than a week's worth of ripped files.
The advantage of having a separate physical drive is that you can keep it in a separate location when you're away from your system for awhile. As always, the choice comes down to which set of compromises you're most comfortable with.