Oh yes, yes, yes!
Try Nightwish, particularly Ghost Love Score. That is my absolute favorite.
Within temptation has some other orhcestral stuff too, I just don't remember which songs.
Epica is very orchestral, most of the time, but they also have death growls, which I am not hugely fond of.
If you like cello a lot try Apocalyptica. They are four cellos, or three cellos and a drummer, depending on which album.
I think that if you go to pandora.com, and search under shared stations you should find my pandora station called nightwish radio for (mostly) symphonic metal, although I also have Rammstein and Evanescense on there too.
Ah, the angst!