php self-calling page does "get" correctly, never gets to "post" action

I have a self calling page, with form:

        <form id="frmSelect" action="<?php echo $_SERVER['PHP SELF'] ?>" method="GET" >  
          <p>Use selection box to choose an option:
          <select name="chooseAction" >
            <option value="Evaluate">Evaluate my site</option>
            <option value="Help">Get Help</option>
         </select> 
         <input type="submit" value="Send"/>
           </p>
      </form>
    <?php // here we check if the form is coming back
        $curReq=$_SERVER['REQUEST_METHOD'];
        $chosen=$_GET['chooseAction'];
      if ($curReq=='GET' && $chosen){  
             //the page is coming back with selection
        if ($chosen=='Evaluate'){
           include 'EvalFrm.html';
        } 
            elseif($chosen=='Help'){
            include 'HelpFrm.html';
        }
  }

both EvalFrm and HelpFrm have the following:

<form id="frmEval" class="emailfrm" action="<?php Form_to_Email.php ?>" method="post" >

but I never get to Form_to_email.php. It just posts back to the original page. Please help!!