In case you are wondering how to parse HTML content of product attributes here is how:
// load product model resource
$productResource = Mage::getSingleton('catalog/product')->getResource();
// load HTML product attribute content and process using CMS template processor
$helper = Mage::helper('cms');
$processor = $helper->getPageTemplateProcessor();
$attributeContent = $processor->filter(Mage::registry('current_product')->getSomeAttributeByCode());
Using this approach you can of course process CMS block template placeholders too.
