Regular expression's magic

I was working on a task, in which i need to load a XML document and get the values from the nodes. Bored of using the XMLDocument and XPathNavigator i was thinking of an effective alternative. It should be as powerful as XMLDocument and as light(in case of performance) as XPathNavigator, so the worthy alternative is obviously.. Regular Expressions. While trying to write the pattern, i googled to find a page which lists all the classes with a description and an example. It gives a quick overview of all the classes. http://regexlib.com/CheatSheet.aspx.