Over at his blog, Joe Hoffman has thoughtfully suggested that Sam's moment of temptation by the Ring is not in fact his grand vision of being Samwise the Strong, Hero of the Age, who not only defeats Sauron but with a wave of his hand turns Mordor into a garden. Rather, Sam's moment of temptation is his urge to make a heroic last stand defending Frodo from the orcs in the pass of Cirith Ungol.
