Godspeed You! Black Emperor
I only put Soulfly because I've never seen Max Cavelera live. Sepultura and Max Cavelera were both so important in shaping me as a metalhead that I need to see both of them some day. So you could swap Soulfly for Cavelera Conspiracy, which I think is the better band anyway.
12/27 -- Unearth/Protest the Hero
03/07 -- Video Games Live
07/06 -- U2