I use Bit Tornado.
It has nice features, such as choose your dl speed, and pause dl. I t also has advanced options, but is really user friendly and simple.
Just dl the free software, and when installed, just dl the torrent file to a folder or desktop, open Bit Tornado, browse for the folder or torrent file where you downloaded it to, and click to start dl (you must also tell Bit tornado where to put the dl file(s)
I usually do it all on the desktop, so I can see, and access easily. Then I trash the torrent file and move my download to the place i want to keep the file om my computer.