Download managers on Windows are one of the most things that are missed for every newcomer to the Linux world, programs like Internet Download Manager & Free Download Manager are very wanted, too bad they are not available under Linux or Unix-like systems. But fortunately, there are many alternative download managers under the Linux desktop.
Torrent Clients - DesignLinux
FrostWire – A Cloud Downloader, BitTorrent Client and Media Player
FrostWire (formerly known as Gnutella) is a free and open-source BitTorrent client and a fork of LimeWire. It was originally very similar to LimeWire in appearance and performance, but later developers added more rich features such as including BitTorrent protocol, Magnet Link, Wi-Fi sharing, Internet Radio, iTunes, Video/Audio Player support. It is written in Java