Great tutorial available on setting up a webserver using webmin without cPanel. A step by step tutorial for new learners.
If you want to host websites and are happy to do without the friendly cPanel interface, there is a great tutorial available here:
http://www.asep.us/2011/03/15/how-to-set-up-web-server-using-webmin-centos/
This shows you step by step how to setup your CentOS webserver using SSH and Webmin.