We've had a few power outages in my area recently, seems to be happening more frequently. I was in the middle of working today when the power went out and I lost the afternoon. The uninterrupted powers supply solutions I've seen mentioned here and other places seem like they are meant to protect your system and then power down until power is restored. I'm wondering if anyone has or knows of any that would allow you to continue working through the power outage, say for a few hours? My system is on the heavier side for wattage: two iMacs, powered speakers, external drives etc. Maybe 500 to 1000 watts? Not really sure, maybe not nearly that much. Thanks!