My new 6- core mac pro will be here at the end of the week. I'm wondering if I really need a UPS for it. I've had iMac's for the past 5 years and have always had them plugged into a surge protector which has worked when an outage has happened. No damage has ever been done to my iMac or its internal hardware. How important is it to have a UPS for a mac pro? What can happen if I dont get one? Will a surge protector do the job by itself?