Must Hear Songs (for newbie)

Obviously Slayer. The general consensus seems to be that Reign In Blood is their all-time best album. (also early albums > newer albums)

Also, depending on what genre you like...

Death metal: Death, Nile, Behemoth (new); Black metal: Darkthrone, Deathspell Omega; Doom metal: Sunn O))), Candlemass;
Power metal: Symphony X, Firewind; Thrash metal: Exodus, Dew-scented, Malevolent Creation;
Metalcore: Heaven Shall Burn, Darkest Hour, All That Remains; Grindcore: Napalm Death, Pig Destroyer

There are, of course, many more staples to each subgenre, and also more obscure/defined subgenres, but this will give you a general idea of the better material you will find.
 
Black Metal - Songs You Should Hear
Aborym - "Our Sentence"
Bathory - "A Fine Day to Die"
Borknagar - "A Tale of Pagan Tongue"
Burzum - "Jesus' Tod"
Darkthrone - "Transylvanian Hunger"
Deathspell Omega - "Sola Fide Pt. I"
Dimmu Borgir - "Alt Lys Er Svunnet Hen"
Dissection - "Where Dead Angels Lie"
Emperor - "I Am the Black Wizards"
Enslaved - "Allfadr Odinn"
Immortal - "Unholy Forces of Evil"
Kataxu - "In My Dungeon!"
Leviathan - "Unfailing Fall Into Naught"
Limbonic Art - "Pits of the Cold Beyond"
Marduk - "The Levelling Dust"
Mayhem - "Freezing Moon"
Nachtmystium - "Scorpio Incarnate"
Naglfar - "Horncrowned Majesty"
Samael - "Baphomet's Throne"
Satyricon - "Mother North"
Summoning - "Lugburz"
Taake - "Hordaland Doedskvad VII"
Watain - "The Light that Burns the Sun"
Xasthur - "Conjuration of Terror"
Zyklon - "Hammer Revelation"

Listen to any of these songs and I guarantee your inclination toward black metal will increase.
 
Candlemass-Epicus Doomicus Metallicus, and Nightfall (Epic Doom)
Symphony X-The Divine Wings Of Tragedy, and Paradise Lost
Theatre Of Tragedy-A Rose For The Dead EP (Gothic?)
The Berzerker-The Berzerker (Industrial Death)
Dream Theater-Images And Words
Behemoth-Demigod (Blackened Death), and Sventieth (Classic Black)
Ensiferum-Ensiferum (Viking),

and Iron Maiden-The Trooper (song).
 
Here are some non-stupid suggestions for albums for a Metal noob based on your description in your intro thread:

Iron Maiden - Piece Of Mind
Iron Maiden - Powerslave
Diamond Head - Lightning To The Nations
Angel Witch - Angel Witch
Blitzkrieg - A Time Of Changes
Saxon - Strong Arm Of The Law
Motorhead - Overkill
 
Here are some non-stupid suggestions for albums for a Metal noob based on your description in your intro thread:

*gives it a read*

hmmm, ok. check out these albums:

Alice In Chains - Unplugged (Live)
Amon Amarth - Versus The World
Blaze - Tenth Dimension
Carcass - Heartwork
Charon - The Dying Daylights
Dark Tranquillity - Damage Done
Ensiferum - Ensiferum
Falconer - Northwind
HammerFall - Chapter V
Hypocrisy - Abducted
Iced Earth - Something Wicked
In Flames - The Jester Race
Nightingale - Invisible
Persuader - Evolution Purgatory
Primal Fear - Seven Seals
Rotting Christ - Thy Mighty Contract
Scissorfight - Mantrapping For Sport And Profit
Sentenced - The Cold White Light
Sinner - Nature of Evil
 
What the hell, I'll list a couple... (Keeping in mind your a newbie)

Amorphis - Tales From the Thousand Lakes
At The Gates - The Red in The Sky Is Ours / With Fear I Kiss the Burning Darkness
Bathory - Bathory
Burzum - Det Som Engang Var
Candlemass - Nightfall
Dark Tranquillity - The Gallery / Skydancer
Darkthrone - Transilvanian Hunger / A Blaze In the Northern Sky / Panzerfaust
Death - Symbolic
Meshuggah - Destroy Erase Improve
Opeth - Morningrise
Paradise Lost - Gothic
Primordial - The Gathering Wilderness
Satyricon - Nemesis Divina