You could easily put a small "sign up" link in the header and/or footer that are not part of your "pitch" to the customers. Most "savvy" users I know are likely

You could easily put a small "sign up" link in the header and/or footer that are not part of your "pitch" to the customers. Most "savvy" users I know are likely to search the page for something like "sign up" if they're looking to the point.