Carlos Kleiber conducting Unter Donner und Blitz, Op. 324 by Johann Strauss Jr in 1986 with the Bavarian State Orchestra.
It may be found here: http://www.youtube.com/watch?v=IomRh4Wir2M
This is an important Kleiber document because the camera stays on him through the entire piece (short though it may be) and we can clearly see all the gestures he uses to get the expression he's after. So, for those who already know him to those who don't, there's much to gain by studying this little video. I apologize for having to use a piano reduction, but that's what there is. It starts out with a charming polka, with Kleiber giving a nice smooth sweeping gesture.
An exciting crescendo figure follows, giving a nice contrast to the flowing figure before. Notice how Kleiber builds the intensity using his left hand (how can't you!).
And now my favorite bit, the woodwinds chirp in with this cute little refrain. And Kleiber gives the signal with a Touchdown! gesture towards the woodwinds in the recap -- you can't miss that either!
Lastly, note the attention Kleiber pays to the bass drum and cymbals -- they are the thunder and lightning after all! The thumps and crashes are set in relief against the charming tune in the strings. What an encore!
Since I'm running out of steam I'll just add these here: note how the the beginning of some phrases begin (woodwinds!!) -- as if they are butting into an ongoing conversation, note how Kleiber controls the intensity (by calming and inciting) of the music, and note anything else I haven't mentioned and pop it into the comments. Thanks.