Wordsmith Karen Thackston makes some excellent points about how to use key phrases and still write readable, interesting text that pushes the right buttons with your readers.
Karen is one of the few who preaches that good content is crucial to a web site's success. Not just with rankings, but with making a meaninful contact with prosepects. As more businesses learn what is necessary to get rankings, it will be the content of their sites that will seperate them.