I covered using Selenium to test website in previous posts (starting with this one which covers install and first test). Using a full browser ensures real world testing and can be done interactively. Using a full web browser does come with a performance penalty and may make CD integration tricky.
Installation is easy. Download the windows zip file from the downloads page. There are no dependencies, you just need the phantomjs.exe file from the bin folder. Move this to a directory that exists on your path, like you did for the other webdrivers. You can then use this as apposed to one of the other drivers simply by calling the PhantomJS webdriver with
driver = webdriver.PhantomJS()
All of the Selenium examples will work with this one change.