the_casualty : Actually. There's tons of good Christian metal to choose from. It just depends on what you like. Here's some good new ones, and still active ones.
Death Metal:
A Hill to Die Upon
Crimson Moonlight(they're on hold, sadly)
Crimson Thorn
Day of Ascension(Well... They only have a demo out, but... It has good reviews on Metal-Archives)
Deuteronomium
Encryptor
Eternal Mystery
Excision(Indonesia)
Extol(Currently on hold)
From This Day
Holy Blood
Hope for the Dying
Hope(From Croatia)
Immortal Souls
Opprobrium
Inevitable End
Lament(From Mexico)
Miseration
Nocturnal Faith
Orphaned Land(Not exactly Christian, but it has lyrics about religions that are Abrahamic)
Pale Horse
Pantokrator(From Sweden)
Royal Anguish
Scourged Flesh
Soul Embraced
Still Remains
Sympathy
The Empty Tomb
The Sorrow
Therapy for Pain(On Hold)
Vanguard (USA)
Vardøger
Black Metal:
Antestor(Yes! They are still active!)
Arvinger
Azmaveth
Bedeiah
Borgazûr
Devotam
Drottnar
Evroklidon(On Hold)
Fire Throne(Just a Darkthrone copycat band, but whatever. They do the copycat thing well)
Flaskavsae
Frosthardr
Lengsel
Nephesh(From Columbia)
O, Majestic Winter
Parakletos
Slechtvalk
Soterion(Only has a demo right now)
Winter's Dawn(From England)
Thrash Metal:
Believer
Betrayer(From Canada)
Common Yet Forbidden(On Hold)
Deadly Blessing
Decision D
Deliverance (USA)
Desertor
Eternal Decision
Stone Vengeance
Seventh Angel
Temple of Blood
The Lead
Tourniquet
Ultimatum (USA)
Unleashed Power
Warmachine (Canada)
Warself
There's all the ones I can find for right now.