Gedit: Don't Get Tricked by Its Simple Looks

A Swiss knife for text editing of any kind

Evince: Speed and Functionality Combined

View and print many document formats with this simple to use application

Pidgin: IM Superstar

Probably the best chat client on all platforms

Deluge: For All Your Torrent Needs

A great BitTorrent client

Rhythmbox: Let the Music Play

A great way to enjoy your songs

FileZilla: The Only FTP Client You'll Ever Need

Uploads and downloads galore