I have the Corsair professional 750w and i want to buy a UPS to handle the pc. I also think of connecting a couple of more things, like a monitor, and a hifi system. Do i need a 750w UPS and then more powerful to fit the rest of the stuff? Should i think of the max consumption the pc can draw, or should i think in terms of the "average" power usage the system will draw (much less than 750 at normal usage)?