Lots of genres, not repeating any Band (except Therion, but with 3 different styles). You cannot go wrong with this list, some nice Starts to any kind of Metal.
The list is sorted by year, but has not any particular order. Enjoy!

1.Queensrÿche - Operation: Mindcrime

2.Atheist - Unquestionable Presence

3.Therion - Symphony Masses - Ho Drakon Ho Megas

4.Cynic - Focus

5.Amorphis - Tales From The Thousand Lakes

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The label metal includes heavy, power, black...

1.Dream Theater - Metropolis Pt. 2: Scenes From A Memory

2.Queensrÿche - Operation: Mindcrime

3.Rush - 2112

4.Symphony X - V: The New Mythology Suite

5.Opeth - Still Life

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An encyclopedia of metal songs that get you to dance or groove to whether you want to or not.
One album per band. Recommendations are welcome.

1.6:33 - Feary Tales For Strange Lullabies: The Dome

2.Aborym - With No Human Intervention

3.Akphaezya - Anthology II: Links From The Dead Trinity

4.Alestorm - Black Sails At Midnight

5.The Algorithm - Polymorphic Code

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My choices for the best things to happen to metal between 2000 and 2009.

1.Kayo Dot - Choirs Of The Eye

2.Ayreon - 01011001

3.Extol - Synergy

4.Opeth - Blackwater Park

5.Krallice - Krallice

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1.Persefone - Truth Inside The Shades

2.Slumber - Fallout

3.Ayreon - The Human Equation

4.My Dying Bride - Songs Of Darkness, Words Of Light

5.Haggard - Eppur Si Muove

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I wanted to create my personal Top List for a long time and to be honest, I always considered it as some kind of cool Prog Metal, Avantgarde Metal mix. As you can see, it has become a bit more complicated. So finally, there are Unexpect and Pain Of Salvation next to Bands like Kamelot and Savatage. Also, some Non-Metal Bands got involved like Jeff Buckley and Oingo Boingo. But could you imagine how PoS would sound without Jeffs influence? Or what would have become of Mr. Bungle if it weren't for Danny Elfman and Oingo Boingo?!

1.Pain Of Salvation - The Perfect Element, Part I

2.Kalisia - Cybion

3.Savatage - Streets: A Rock Opera

4.Dog Fashion Disco - Adultery

5.Arcturus - The Sham Mirrors

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These albums are my favorite since I started listen to Metal.

1.Kamelot - The Black Halo

2.Epica - Consign To Oblivion

3.Within Temptation - The Heart Of Everything

4.After Forever - After Forever

5.Blackfield - Blackfield

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***Currently working through suggestions and adding some spacey non-metal things when they cross my mind***
As a lover of all things sci-fi I find metal to be the most accommodating of genres when it comes to themes of space/aliens. This is a list of those albums which use this theme and/or evoke an overall 'spacey' atmosphere and which I find particularly intriguing and enjoyable. No order for now and a work in progress (recommendations most welcome) Last Updated: 9th April 2014

1.Atoma - Skylight

2.Ayreon - The Universal Migrator Part I: The Dream Sequencer

3.Dol Ammad - Star Tales

4.Star One - Space Metal

5.Pagan's Mind - Enigmatic : Calling

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1.Dream Theater - Metropolis Pt. 2: Scenes From A Memory

2.Opeth - Blackwater Park

3.Symphony X - V: The New Mythology Suite

4.Blotted Science - The Machinations Of Dementia

5.Ayreon - The Human Equation

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UPDATED Apr. 2012! Like the title says (covers '00 - '09). In numbered order by personal preference. May change as I find new releases.

1.Anubis Gate - The Detached

2.Agalloch - The Mantle

3.Kamelot - The Black Halo

4.Warning - Watching From A Distance

5.Gojira - The Way Of All Flesh

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A list of my favourite Progressive albums on Metal Storm, ranked roughly in order of preference.

1.Ayreon - The Human Equation

2.Dol Ammad - Ocean Dynamics

3.Riverside - Anno Domini High Definition

4.Porcupine Tree - Signify

5.Opeth - Still Life

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Progressive Metal/Rock is my main music, but you can't ignore the beauty in other genres.

1.Orphaned Land - The Never Ending Way Of ORwarriOR

2.Opeth - Damnation

3.Porcupine Tree - The Incident

4.Porcupine Tree - In Absentia

5.Tool - 10,000 Days

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20 Albums From The Past Decade That Changed My Life!

1.Cynic - Traced In Air

2.Symphony X - The Odyssey

3.Opeth - Damnation

4.Nevermore - This Godless Endeavor

5.Ayreon - The Human Equation

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1.Iced Earth - The Dark Saga

2.Haggard - Tales Of Ithiria

3.Darkseed - Diving Into Darkness

4.Metallica - Metallica

5.W.A.S.P. - The Crimson Idol

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1.Dream Theater - Images And Words

2.Cynic - Traced In Air

3.Symphony X - The Divine Wings Of Tragedy

4.Opeth - Damnation

5.Ayreon - The Human Equation

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