All great art has to have some sort of insperation. Mine is usually the music i'm listening too. Even if its not the music imlistening too i have a special playlist just for photoshop work.
It is:
Tool - The Grudge
Tool - Parabol
Tool - Parabola
Tool - Lateralus
The Cure - Closer to me(Closer Mix)
Bad Apples - Get It On(Club Mix)
Peace Orchestra - Who am I?
Nana Kitade - Watashi wa Jigenbakuda
Nana Kitade - Ron Yori Shouko
Nana Kitade - Utareru
Pendulum - Plastic World
Pendulum - Sounds of Life
Pendulum - Spiral
Pendulum - Trail of Seven
Pendulum/Prodigy - Voodoo People
Air Traffic - Shooting Star
Jimmy Eat World - Believe In What You Want
Jimmy Eat World - My Sundown
Evanescence - Lithium
Evanescence - Good Enough
Evanescence - Eternal
Evanescence - Imaginary
Evanescence - My Last Breath
Bis - Public School Boy
Iosys - ??
Iosys - ????
Iosys - ??????
Rage Against the Machine - Beautiful World
Rage Against the Machine - Sleep now in the Fire
Rage Against the Machine - One Man Army (Acoustic)
Rage Against the Machine - Freedom
Rammstein - Feur Frei
Rammstein - Los
Rammstein - Spieluhr
Lunatic Calm - Leave you far Behind
Team Sleep - The Passportal
Placebo - Every you Every Me
Placebo - Protege Moi
Junkie XL - Beauty Never Fades
Oakenfold - Dread Rock
Hoobastank - Running Away (Acoustic)
Hoobastank - Crawling in the Dark (Acoustic)
Letztre Instanz - Repunzel
Anberlin - We Dreamt in Heist
Finntroll - Trollhammaren
Finntroll - ursvamp
HIM - Heartache Every Moment
HIM - Lose You Tonight
HIM - Beautiful
Linkin Park - Rnw@y
Linkin Park - By myself
Linkin Park - Enth E Nd
Linkin Park - P5hng Me A*wy
Linkin Park - Somewhere i Belong
Linkin Park - Faint
Cales - Unknown Reason
Razorlight - Son't go back to Dalston
Story of the Year - Page Avenue
Story of the Year - And the hero will drown
Story of the Year - Falling Down


New additions to it are some tracks from the GITSSAC OST(Ghost In The Shell: Stand Alone Complex Origonal Sound Track)
Monochrome
I Do
Living Inside The Shell
Get9
Where Does This Ocean Go

I would fully reccomend listening to these tracks they are very peaceful and relaxing.