Torrents are by far one of the safest choices for downloading stuff off the internet. You should definitely stay away from limewire if you don't know how to safely get stuff from it. For a guide on how to set up bit torrent look here
Generally with torrents you can see where others have left comments or verified that the torrent is virus free. Just keep your head about you and you can safely get gigs upon gigs of media. Let me know if you need any more help.
I might be an adult, but I'm a minor at heart.