There are several several types of Linux are available. Fedora, Ubuntu, Suse are the most popular Linux. You can select one of this.
Install Linux in your pc. Here is some screenshots of different types of Linux desktop.
Fedora 16 Linux Desktop Screenshot
Fedora 16 review
Download Fedora 16
Step by step Fedora 16 installation with screenshots
Upgrade Fedora 15 to 16
Fedora 16 review
Download Fedora 16
Step by step Fedora 16 installation with screenshots
Upgrade Fedora 15 to 16
Ubuntu 11.10 Desktop Screenshot
Download Ubuntu 11.10
Step by step Ubuntu 11.10 installation with screenshots
Download Ubuntu 11.10
Step by step Ubuntu 11.10 installation with screenshots
Suse 12.1 Desktop Screenshot