Megadeth won't be in Montreal. :/ I actually don't mind Disturbed to be honest, even if a lot of their stuff sounds pretty similar, I like the singer's voice anyway so I think they will be ok. Machine Head aren't too bad, not a big fan of the groove stuff, Vio-Lence though would be a different story. Death Angel is on that day too at least, and a couple other decent non-Mayhem bands.