If you have EZDrummer 3 and you're sometimes in need of a good drum kit that works in an orchestral context or in any other situation that requires a big, open and somewhat distant (but still detailed) drum sound, the new EZX from Toontrack, called "Big Stage" might be exactly what you're looking for. Recorded in a large theatre — Story Teatern in Gothenburg —, the EZX includes four complete kits, also features a set of concert toms and everything was captured with various ambience microphones on top of the more traditional drum microphones.
Just to highlight that this expansion also works in the latest version of Superior Drummer 3 (but not EZ Drummer 2).
I always reach for the CinePerc kit for drums on a scoring stage, but these kits sound really good. In general I often moan about too many mic positions, but in this case it's kinda the whole point, and there seems to be more ambience mics than on any other EZX I can think of, it's into SDX territory on that score. You have stage, audience, balcony, ceiling and royal box. (note - not all the mixer presets have all options available, but I presume you can roll your own).
It's 80 euros, which is the standard EZX price now. I've noticed Toontrack are getting longer and longer to get their products discounted - they happen eventually but it can be a very long wait.
Toontrack don't appear to have a normal walkthrough video, but this chap seems to have done a good job.