Hey Thyen,
Ubuntu is most popular distro of linux and is widely used it is freely available with both community and professional support.
Ubuntu includes more than 16,000 pieces of software, but the core desktop installation fits on a single CD. Ubuntu covers every standard desktop application from word processing and spreadsheet applications to web server software and programming tools.
http://ubuntuguide.org/wiki/Ubuntu:Gutsy will help you a lot.