[Black Wolf]

Keep Me in Your Heart for Awhile by Warren Zevon or The Show Must go On by Queen. Both awesome moving songs made much more impacting when you realize they were written and performed essentially as goodbyes from dying artists.

[Enigmatic Entity]

Howard Shore - Hymn to the sea //mourning never ceases
Hans Zimmer & Lisa Gerrard - Elysium //Gladiator; after he dies
Hans Zimmer - One Day //Pirates of the Carribean; 1,2 or 3; I don't know
John Debney - Resurrection //Sort of more epic to begin with, movie unknown
Taj - Hero //about going to jail for knifing; hits home sometimes
Zbigniew Preisner - Requiem for my friend //not the crying sadness, but sad
Hot Butter - Popcorn //believe it or not, mainly the artist's sadness showing through, at least for me
Elsiane - Vaporous //hard to describe this one
Black - It's a wonderful life //really, it is...
FreePlay Music - Eternal champion //epic, sad - why is it called eternal champion?
FreePlay Music - Steadfast //standing up in the face of death, for when a hero dies?
Adam Langston, Andrew Skrabutenas and Chris Bouchard - The forgotten people of Arnor
//from "The Hunt for Gollum" movie
Kevin MacLeod - Sovereign //nice piano music there
Chris De Burgh - Anything from the "Flying Colours" album
Dead can Dance - The host of Seraphim //Despair, for some reason doesn't induce crying
FreePlay Music - Nostalgia //very good representation
FreePlay Music - Lightning steps //similar to Nostalgia
Jacques Davidovici - Insektors soundtrack 2 [credits theme] // more of a nostalgic thing - I used to watch that show
Tasmin Archer - Sleeping satellite //sad and sorry
Erik McClure - If a dream came true //if? when.
Mattafix - Big city life

There's too many for me to list here - some have a different kind of "sad" or "epic" feel, I can't really categorise them that easily, so I usually end up with very long lists...

[perihelion]

I second Black Wolf's nomination of "The Show Must Go On."

I'll also throw in Pink Floyd's "The Final Cut."  The whole album, really, but mostly the title track.  Not a good thing to listen to if you are already depressed.

[Nuke]

slayer-killing fields
very moving

[peterv]

I'll also throw in Pink Floyd's "The Final Cut."  The whole album, really, but mostly the title track.  Not a good thing to listen to if you are already depressed.

The most depressing about this album is that Pink Floyd did brake up because of it. Two resons to cry when you leasten to it.

[spaceranger]

Goodbye - Emmy Lou Harris (mind blowing cover of a tune by Steve Earle off of Wreckingball album)

That song could form rivers, seriously.  Don't be put off at all by Emmy Lou's country association, this song can't fit in that box.  It helps a lot that the song was arranged and recorded by Daniel Lanois (who also played on it; he's the dude who helped get U2 their sound, along with Brian Eno, starting with The Unforgettable Fire). 

*gets a hanky*

[BengalTiger]

Try these:

Tears in heaven

Knocking on heavens door

[TrashMan]

Sonngs that move me?

Moe as in "energize", like some action songs that get my adrenaline flowing?
http://www.youtube.com/watch?v=X1clgyPLkUg&feature=related
http://www.youtube.com/watch?v=zVi2HVWm72c&feature=related


Or "move" as in make me sad, thoughtfull?
http://www.youtube.com/watch?v=tfkqkVMEqmk
http://www.youtube.com/watch?v=FTQ3asOb4wU&feature=related


Heck, practicly anything from Yoko Kanno is insanely powerful stuff.

[The E]

Cup of Coffee, by Garbage

[Nuke]

theres always hank sr

[castor]

To Live Is to Die (Metallica)
http://www.youtube.com/watch?v=2WdYt9VkVek

Flowers of The Forest (arr. M. Oldfield)
http://www.youtube.com/watch?v=KBWaMpoYfAk

Psalmus Ode (Vangelis)
http://www.youtube.com/watch?v=1Rw7p8McXzw

Dante's Prayer (L. McKennitt)
http://www.youtube.com/watch?v=60g7gvBLIoQ

[redsniper]

Also, any rendition of Terra's Theme from FF6.

And the opera song.

Really most if not all of the music in FF6 is excellent. Nobuo Oematsu FTW.

[Androgeos Exeunt]

Sad Christmas by Freeplay Music is also an easy choice.