gistfile1.txt

//---------------------- GET THE PRODUCTS  
	$products = Mage::getModel ( 'catalog/product' )->getCollection ();
	$products->addAttributeToFilter ( 'status', 1 ); //enabled
	$products->addAttributeToFilter ( 'visibility', 4 ); //catalog, search
	$products->addFieldToFilter(array(
        array('attribute'=>'cost','gt'=>0)));
	$products->addFieldToFilter(array(
			array('attribute'=>'type_id','eq'=>'simple')));
	
	
	$products->addAttributeToSelect ( '*' );
	$prodIds = $products->getAllIds ();
	
	//echo 'Product filter: '.memory_get_usage(false).'<br>';
	//flush();
	


	foreach ( $prodIds as $productId )