Well a tragic hero doesn't necessarily have to be angsty. In the most memorable cases, the very thing that makes a hero tragic is the same thing that makes us root for him or sympathize with him.
Take your classic revenge plot, for example. On the one hand, it is the hero's obsession with getting back at the people who wronged him that sets the stage for the most tragic parts of the story — often he neglects or even actively hurts the people he loves, is blind to the destruction he causes in his quest for revenge, etc. Yet it's exactly this obsession that endears us to that hero, because who on earth DOESN'T want to get some retributive payback once in a while?
I'd recommend playing up that juxtaposition for the best effect in a tragic hero. Remember that tragic doesn't just mean sad — it has a certain inevitability to it. It's the way the hero spirals towards a destiny that is all the more heart breaking because you almost can't help but see it coming, because his flaws and his virtues are so intrinsic to one another as to be inseparable.
So, yes, while tragic heroism is *sad* by nature, there's a lot of non-angsty ways to explore it. Pride, anger, even more positive traits like selflessness (Spider-Man could be called a tragic hero, for example, as his desire to protect people often keeps him from having meaningful relationships with those close to him, or even causes them harm) can all be key traits to a tragic hero, it's all a matter of careful plotting and character development.
edited 18th Oct '10 8:27:41 PM by TheBadinator