iMesh is a peer-to-peer file-sharing program that lets you find, download, share and publish audio and video files, computer games, images, photos and just about any document, within a growing community of millions. It is a free and open source torrent client application that's user friendly and customizable.
Here are some screenshots to illustrate the features and user interface of this application:
FrostWire
Tixati
BitComet
qBittorrent Portable
Freenet