phpSweetPDO is a PHP PDO wrapper, which is extremly simple to use, phar packaged to ease deployment, and compact (at 400 lines of commented code). It optionally supports events, which allow for easy profiling and debugging.
QuickPDO is a class that extends the native PDO class in order to give it nice database connectivity shortcuts. Such shortcuts already exist in Zend. The new methods are execute(), fetchAll(), fetchRow(), fetchOne(), fetchPairs(), and fetchCol().