Free Download Manager? It is a powerful, easy-to-use and absolutely free download accelerator and manager. Moreover, FDM is 100% safe, open-source software distributed under GPL license.
FDM offers these features:

• BitTorrent support
• Upload Manager
• Flash video downloading
• Portable (USB stick) mode
• Audio/video file preview and conversion
• Download acceleration
• Resume broken downloads
• Smart file management and powerful scheduler
• Adjust traffic usage
• HTML Spider: Download whole web pages or even whole web sites with HTML Spider.
• Simultaneous downloading from several mirrors
• Zip files partial download
• Active spyware and adware protection through active communication among users
• Multi language support
• Plus many more features!