Both Ultra Saturday tunes...

Mainly because all 3 of us own PS3's with lots of DLC and we would love to be able to play our own music :P

Bold being the most wanted tracks.
:) = Thank you HMX for releasing a track I'd been hoping for.
:D = BIG thank you to HMX for giving one of my most-wanted tracks to us

Bill Buford's Earthworks - Footloose and Fancy Free
Bang Camaro - Push Push (Lady Lightning) :D
Bang Camaro - Swallow the Razor
Carl Douglas - Too Hot to Handle
Clutch - 50,000 Unstoppable Nights :)
Clutch - Mob Goes Wild :)
Creed - Higher :D
Damone - Conquer Me
Damone - Serial Killer
Damone - Roll the Dice
Drive-By Truckers - This F***ing Job
Drowning Pool - Bodies :D
Exodus - Riot Act
Finger Eleven - Paralyzer :D
Five Finger Death Punch - Burn it Down :)
Flight of the Conchords - Business Time :)
Flight of the Conchords - Demon Woman :)
Flight of the Conchords - The Most Beautiful Girl (In the Room) :)
The Hold Steady - Sequestered in Memphis :)
In This Moment - Mechanical Love :)
Jonathan Coulton - Code Monkey :D
Jonathan Coulton - Ikea :D
Jonathan Coulton - The Future Soon :D
Jonathan Coulton - Creepy Doll :)
KMFDM - A Drug Against War
KMFDM - Juke Joint Jezebel :D
Lacuna Coil - Survive :)
MC Frontalot - Goth Girls :)
Midnight Riders - Midnight Ride
Midnight Riders - One Bad Man
Ministry - Let's Go
Ministry - Life Is Good
Ministry - Watch Yourself
Parry Gripp - The Girl at the Video Game Store :D
Parry Gripp - Last Train to Awesometown
Parry Gripp - Nom Nom Nom Nom Nom Nom Nom
Paul Henry Smith & the Fauxharmonic Orchestra - Flight of the Bumblebee (Rimsky-Korsakov)
Paul Henry Smith & the Fauxharmonic Orchestra - Night on Bald Mountain (Mussorgsky)
Paul Henry Smith & the Fauxharmonic Orchestra - Hungarian Dance No. 5 (Brahms)
Prong - Can't Stop the Bleeding
Prong - Power of the Damager
Seether - Fake It :D
Seether - Remedy :D
Speck - Grumpytown
Speck - VP of Booty Reports
Stroke 9 - Kick Some Ass :)
Stroke 9 - Little Black Backpack :)
Testament - Henchmen Ride :)
Third Eye Blind - Semi-Charmed Life '09 :D
Third Eye Blind - Jumper '09 :D
Third Eye Blind - Never Let You Go '09 :)
The Tragically Hip - Blow at High Dough
Wounded Soul - Rx
Zack Wilson - Moonshine Holler

Well from the songs I've seen in the announcement I'd like...
Bif Naked - Sick
Steve Vai - Get the Hell Out of Here
Steve Vai - The Attitude Song
Marillion - Whatever Is Wrong With You

May be more, but that's all I have heard about for now.

I would love to see the Jonathan Coulton songs as well as Flight of the Conchords when they're released.

Update

Push Push (Lady Lightning) by Bang Camaro

Bang Camaro - Push Push (Lady Lightning)
The Main Drag - Don't Let Me Down (Slowly)
Steve Vai - For The Love of God (Live)
The Slip - Even Rats
Cetan Clawson - White Heat

also anything/everything released by Flight of the Conchords forever.

All of them :(

All please, but most of All Creed-Higher and Slaughter-Fly To The Angels

Everything by the following bands:

Between the Buried and Me
Flight of the Conchords
The Gaslight Anthem
Seether
Flogging Molly

:)

all.