Bear with me, I have a bunch. I have considered making a playlist.
Hardest Part, Life in Technicolour II, Rainy Day - All by Coldplay
Fortunate Son - Creedence Clearwater Revival
I Think I'll Start a Fire - Faunts
Still Alive - Jonathan Coulton & GLaDOS (No one ever gives any love to GlaDOS when naming the artist)
Now We Are Free - Hans Zimmer & Lisa Gerrard (from the Gladiator soundtrack)
Ibelin - Harry Gregson-Williams (from the Kingdom of Heaven soundtrack)
Concerning Hobbits - Howard Shore (As if I need to say where this is from)
Flying Vessel - Ilan Eshkeri (from the Stardust soundtrack)
Peril - Martin O'Donnell & Michael Salvatori (Halo 2 soundtrack)
The Incredits, Married Life, Up With End Credits - Michael Giacchino (The Incredibles, Up x2)
Have a Nice Day - Stereophonics
The Boys Are Back in Town, Angel from the Coast, Freedom Song - Thin Lizzy
Beautiful Day, In God's Country - U2
Jumper - Waterflame (from Castle Crashers)
Tales - Wolfmother
And finally...
Always Look on the Bright Side of Life : )