I currently am using a mac mini as a media center for my TV, and have an external 500GB hard drive hooked up to it. I've almost reached 500 gb's of movies and tv shows on the hard drive and am looking to upgrade to at least a 1 TB hard drive or maybe even 2 TB. I want everything to be backed up, so if one of these hard drives fails, I don't lose all my movies and shows. I like the idea of mirrored drives where you basically have two hard drives that both are storing the identical data, so if one fails, its fully backed up on the other. Anyone have any advice on mirrored drives, such as a good way to set them up? Or any specific ones that work well?