CI Factory is a Continuous Integration system, not just a CI server. With minimal configuration it creates a CI system for you including much of your development environment. It will create a development tree, write your build scripts, setup a super powered version of CruiseControl.Net, import it all into source control, and more. It does all the work that everyone has to do when creating a CI system. It even has automated branch creation baked in, so the next time you need to create a branch for a release, CI Factory will handle that for you.
For more information on what it is and how it works see the introduction. If you are ready to get started using it download it and read the install document. You should be able to get a build server up and running in no time.
CI Factory is extended with Packages. There are many packages that come with CI Factory. Here are just a few: