My high school did a well-don production of it last year for our winter play. I was unable to audition, but I did see it and it was AMAZING.
I know members of the cast, and they said that it was the most valuable acting experience they've ever had. And, it really brought out the best in their abilities too (i.e. this one kid who figured out in May of his senior year that if you smirk while you deliver serious lines the audience doesn't take you seriously, even he- with some intense help from the director- was much more than decent in his roles).
I would definately agree with what citylights said, though- keep it simple.
It's a great and thought-provoking show. The college my mom teaches at is putting it on in the fall, and I'm definately planning to see it again. (I've seen them pull off everything from The Elephant Man to Sweeney Todd, so I doubt I'll be let down.)
"I mean, how many of us could honestly say that at one time or another he hasn't set fire to some great public building?"