Personally I like to use the following method. 
There are many different variations of this but this one works for me. 

 First get – one of these two programs

Download – bit torrent client.

http://www.bittorrent.com/

http://azureus.sourceforge.net/

 Second visit sites that have torrents. 

Some of my favorites are:

www.isohunt.com

www.torrentz.com

are just a few of my favorites.

When you click on the Torrent, you will want to OPEN with
your torrent downloader, and it will add it to your downloading list and just
wait for them to download.