Premier-Guitar.com sent a video crew to the Dream Theater show in Rosemont, IL to go through guitarist John Petrucci's rig, including all the guitars he plays onstage, the amps, and everything else. It's an exhaustive explanation that's pretty much for serious gearheads only - but if you're a Dream Theater fan, the odds are pretty good that you're also a serious gearhead, so enjoy all 17 minutes of tech talk!