I came across this site. This site may be useful for beginners, who want to tweak their X (NVIDIA cards only).
http://www.sorgonet.com/linux/nv-online/ ["here you can configure all your NVIDIA Options until your GNU/LINUX system, Select your preferences and submit it, NVoption Online generate a new page using your configuration,also generate a Perl Scritp using your personal configuration, download an just run it to update your configuration."]