So yeah, the title is pretty unlike most other titles I make for threads. Forgive me.

So, for me...

Led Zeppelin II

Led Zeppelin III

Led Zeppelin IV

Physical Graffiti

Dark Side of the Moon

Wish You Were Here

The Piper At the Gates of Dawn

The Wall

Abbey Road

Made in Japan

LA Woman

Rumours

How about you guys?

Emery-The Weak's End.

Oh, but there's so many. Let's see:

Collide - Skillet
Deja Entendu - Brand New
Safe From the Losing Fight - Kids in the Way
Shut Your Mouth and Open Your Eyes - AFI
Sing the Sorrow - AFI
A Beautiful Lie - 30 Seconds to Mars
Stories and Alibis - Matchbook Romance
Good Mourning - Alkaline Trio
In Love and Death - The Used
Garden State soundtrack
Details - Frou Frou
Trouble - Ray LaMontagne
Final Straw - Snow Patrol
O - Damien Rice
Self Titled - Scissor Sisters
Hometime - Alison Moyet
Under Feet Like Ours - Tegan and Sara
So Jealous - Tegan and Sara
Reckoning - Ani DiFranco
Letting off the Happiness - Bright Eyes

(excluding Skillet + AFI)

Dope Stars Inc. - Neuromance
The Arcade Fire - Funeral (never gets old)
Bright Eyes - Lifted
Rasputina - Cabin Fever (!)
Rasputina - Frustration Plantation
Virgin Black - Sombre Romantic (never get tired of this one)
Neutral Milk Hotel - In the Aeroplane Over the Sea (ahhhh)
Olivia Tremor Control - Black Foliage
Red Flecks - The Story Cannot End
David Bowie - Best of
The Ring Soundtrack
Joy Division set
American McGee's Alice Soundtrack

Here's my highly selective list:

Collide - Skillet
Elocation - Default
WARNING - Green Day
Greatest Hits - Queen
Garden State Soundtrack
Oh, Inverted World - The Shins
Final Straw - Snow Patrol
Injury Loves Melody - Diffuser
Something Like Human - Fuel
Hot Fuss - The Killers
Orgy - Vapor Transmission

Three Cheers for Sweet Revenge - My Chemical Romance. I bet you didn't know I was going to name that. [/dripping with sarcasm]
Absolution - Muse
Origin of Symmetry - Muse
Showbiz - Muse
X & Y - Coldplay
Hopes and Fears - Keane
Collide - Skillet

These are the cds that I rarely get tired of listening to ...

Echoes of the spirit still dwell- Spoken
What Remains- Spoken
Drawing Black Lines- Project 86
Self Titled- Project 86
Fight the system- Squadfive O
Saturate- Breaking Benjamin
Bow-Focused
Summer Of Darkness- Demon Hunter
Adrenaline-Deftones
Dark Light- Him
Deep Shadows & Brilliant Highlights- Him
Four Wall Blackmail- Dead Poetic
New Medicines- Dead Poetic
Dead to the world- Officer Negative
Sinster Urge - Rob Zombie
Back Again- Disciple
Engage- Pax 217
No Compromise- Headnoise
Ixnay on the hombre - The Offspring
Invincible- Skillet

"Collide", Skillet
"The Question", Emery
"Phenomenon", TFK
"Songs to Burn Your Bridges by", Project86
"Day of Fire", Day of Fire
"Jonah33" Jonah33
"Apparitions of Melodey", Kids in the Way
"A moment of Imperfect Clarity", Spoken
"Free to Conquer", Subseven