What bard song components Help sorcs?

Hey all, I recently rolled a a bard and leveled him to 30. I did it mostly to try to understand the class better.

What I was trying to figure out was what components really help sorcs in a raid other than the standard mana effeciency components?

Specifically:
1) What in the song increases Sorc damage (I know the voice mods amplify things)
2) Are those components that increase base damage the same ones that increase melee dps damage?
3) Do spell haste components really work?

Appreciate any thoughts you all might have.


Krynus 50 Sorcerer
Arak 50 Tuurgin
Bjorn 50 Warrior
Starscreamm 50 Rogue
http://www.graffe.com/forums/showthread.php?t=56892