I would stay away from any of those because many of them may contain viruses. I usually go to youtube and download it from there. You can go to download.com and search for youtubedownloader(it's a free program) All you do is find the song, copy and paste it in youtubedownloader and it will dfownload the song in mp3 format for you.
:::::::::How to Torrent:::::::::::::::::::::::::::
Torrenting is simply downloading a file from Sites like Demonoid, Piratebay, Mininova, BTjunkie, H33t. And opening it up in uTorrent or bitTorrent (utorrent.com to download the program) all the program does it keeps track of your download, it lets you Turn off the program and start again at a later time. So you can download large files when your not using the computer, and when you are you can shut it off and not have to worry about losing anything.
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i must warn you Torrenting is not a Safe way of downloading music but is a hell of a lot safer then Limewire, i've had years of computer experience and the only thing i know of that gets your computer more viruses then limewire is Porn. lol And only Slightly so.
::::::::::::Best Way:::::::::::::::::::::::::::::::::::
The very best way to download files i know of is through Demonoid.com Its a Private Downloading site. The Deal with it is, if i invite you and you upload a Virus, you get banned and i Get Banned. This keeps the site Virus free. On few occasions there are Free Registration openings, Chick the site from time to time to see if its open. it is truly the safest way to download on the net.
:::::::::::::::::::Easy way of Downloading Music:::::::::::::::::::
hmm but for now if you need a Quick Solution for your Music Downloading, google Blogs.
http://blogsearch.google.com/?hl=en&tab=wb
9 times out of 10 you can find your Favorite band's CD on here, just Search.
"(Artist, Album) Download"
I Searched for Disturbed The first two links i found had the whole CD to download. This works for Most Music, unless its a local band obviously.
i hope this helped. Add me on aim, Kyle92591 or xfire Fallenswarm, (im always on xfire, Auto sign in)and i'll help you out with anything you need, lol i retyped this 3 times because i got Technical and i felt bad giving to much information that you really didn't need to know
anyway Contact me if you need anything.
Best of luck
~Kyle