I just spoke with an apple tech support guy that seemed pretty knowledgable about an issue I have with my 6 core mac pro. When my furnace kicks on and off I get a weird clicking noise in my speakers and he said that it was due to slight brown outs or dips in power, and it was audible because the capacitors in the mac pro power supply aren't overly large and thus dont compensate well for this. His recommendation was a simple APC low wattage UPS. He said it wasn't important that it matched the draw from the mac pro power supply since all it had to do was compensate for the slight drops in power that my apartment occasionally experiences when the furnace kicks on. I wanted to double check that math here before I run out and pick a low wattage UPS up. I am not all that concerned about being able to run the machine in the event of a power loss at all, and I mostly just want to filter for clean power going into the mac. Does this sound reasonable?