I know there are a ton of different custom template files like page.tpl.php and node.tpl.php etc. But is there a way to make a custom template for a specific node ID? This doesn't work node-3.tpl.php, but is there a way to accomplish this?
UPDATE CODE
function phptemplate_preprocess_node(&$vars) {
$vars['template_files'][] = 'node-' . $vars['nid'];
}