Folx is the best download assistant for Mac.
Folx is a free download manager for Mac OS X. Its friendly interface will help you take the most of your downloads. It's not overloaded with tons of unnecessary features and is extremely easy to use. All you have to do to download files is click the link in your web browser and Folx will catch it.
By the way, Folx is a 2-in-1 app: you don't need one program for common downloads and other one to download torrents. Folx can handle both as a piece of cake
Link to Free Download (http://www.theinfostride.com/forum/index.php?action=downloads;sa=view;down=31)