I just picked up a FireStudio Mobile and have it hooked up to my Mac. The problem is, with no power switch on it and the fact that it can be powered from the firewire cable, it's on as long as my computer is on. I use my computer for a lot more than dabbling with music so I either have to leave it powered on all the time my computer is on, or unplug and plug it back in each time I use it. I play guitar and have my amp and pedals on a separate power strip, so I have no issues with that, but that got me wondering what you all do.