Completely forgot about Dragonforce. Saw them live last year at Download festival, they were absolutely awesome, along with Linkin Park, Stone Sour, Wolfmother, Korn, Reel Big Fish (not exactly metal I know)
My favourite Rock/metal band has to be Maximum the Hormone, I wish they would do a tour outside japan. There is a new english fan site for them if people are interested,
www.Maximumthehormone.net, it's worth a look.