make a new plugin, location global_start and any name you want
Code:
if ($_SERVER['HTTP_HOST'] != thesabrehood.com || $_SERVER['HTTP_HOST'] != thesabrehood.org || $_SERVER['HTTP_HOST'] != thesabrehood.net) {
header('Location: http://www.thesabrehood.com/');
}
though i wouldnt install that code untill somone confirms it.
if it dosent work properly it might lock you out of your own site untill you temporarily disable plugins, so i guess wait for a confirmation from a better coder than I.