title: Flex ComboBox, default value and dataproviders
body: <p>I have a Flex <code>ComboBox</code> that gets populated by a <code>dataprovider</code> all is well...</p>
  
  <p>I would now like to add a default " -- select a item --" option at the 0 index, how can I do this and still use a <code>dataprovider</code>? I have not seen any examples of such, but I can't imagine this being hard...</p>