Well...I want to get a UPS for my Power Mac. Problem is, it pulls 604watts at max output. Ok, so I won't be doing that because I don't have an extra harddrive and I don't have all the USB/FW ports at their max either. But still, thats a lot of power. From what I have figured I will need a 1000va backup to run it for 5 minutes! Thats not cheap! Here is my issue, if I got one with say, 550va backup, does that mean that I would only be able to run it for 2-3 minutes or does it mean my PM would draw too much power for the little bugger to do anything? Does anyone in here have a PM with a UPS connected? Someone must. iGary? Lacero?