I find myself really enjoying the symphonic/goth metal groups, so I just raided my Pandora station for all of the bands that match that description for you: Lacuna Coil, In Tenebris, Mortal Love, Epica, Leaves’ Eyes, Nightwish, Within Temptation, Sirenia, Theatre of Tragedy, Xandra, The Crest, Tristania, Octavia Sperati, The Gathering, Edenbridge, and Tiamat.
The uniting feature of all these groups is that you get really hard (goth/doom/death) metal music contrasting with female (often professionally trained sopranos) vocalists.