Basically all you need is a bittorent client(I use azureus) then find a site that has torrents you can download. Once you download the .torrent file open it with the client it and it will download.
Just make sure you arent downloading any copy righted materials or anything thats illegal. These types of things shouldn't really be discussed here because we dont want to get the forum in any trouble so if you need more detail there are forums dedicated to torrents out there.
The Amish computer:
AMD Opteron 165 CCBWE 0551@ 2.25ghz(250 x 9) 1.45v cooled w/ Thermaltake Big Typhoon | DFI LP Ultra D | eVGA 7800GT@ 465/1110 | Sound Blaster X-Fi XtremeMusic | 2GB G. Skill DDR 500 @ 250mhz 3-4-4-8 | 80 GB SATA + 40GB SATA + 200GB IDE| 480w Thermaltake Silent purepower | Thermaltake Tsunami Dream case (Black) | Windows XP Pro |