Bamboo

Bamboo is another available tool for setting Continuous Integration in your environment. Its one of the simplest tools i have come across for building a continuous integration system.

http://www.atlassian.com/software/bamboo/

The website shows a 10 minute tutorial which helps in setting up and starting the continuous integration server. The configuration options with this tool are very simple and helps in setting up the environment through the user interface available in this tool.

It has easy integration with build tools like Maven, Ant etc.