Magento Product attribute List

$product = Mage::getModel('catalog/product');
 $attributes = Mage::getResourceModel('eav/entity_attribute_collection') ->setEntityTypeFilter($product->getResource()->getTypeId()) ->addFieldToFilter('attribute_code', 'manufacturer'); 
 $attribute = $attributes->getFirstItem()->setEntity($product->getResource()); 
 $manufacturers = $attribute->getSource()->getAllOptions(false);

foreach ($manufacturers as $manufacturer):

//echo $manufacturer['label'];
endforeach;