bittorrentis a peer-assisted, file distribution protocol that can be used to efficiently download large files from the web, such as the Fedora DVD ISO images. It should already be installed on your system. If not, use yum:
~> sudo yum install bittorrent bittorrent-guiHit 'y' when asked if you want to install the programs and their dependencies.
bittorrent is now installed, but you must be sure that you have the appropriate holes poked into your Firewall. See the Firewall page for details.
bittorrent-gui is a GUI interface to bittorrent, but I prefer using kget.