Hi, We just got hit hard with a power outage and that got me thinking about getting UPSs for the 508s. What made this outage particularly bad was before the power went completely out, the power cycled several times off, on, off, on and off. As I type this the computer is running off a UPS battery. I don't think those APC brick looking things would be enough. So I'm thinking more like a APC RS 1500VA LCD, but that has a step approximation sine wave output. More expensive models have a true sine wave output. I looked for the answer to these points, but didn't find a satisfactory answer. I'm thinking that since I'm going to put one on the 508, I might as well get one big enough to handle a 240 watt LCD TV and not so much the AV receiver. Mainly to be able, in a reasonable amount of time, to use the TV to properly shutdown the 508. Perhaps with enough capacity to finish a soon to end recording with the TV and receiver turned off, and then power off the 508. Anyone currently doing this and could you please provide the brand and model of UPS that you are using? Thanks. P.S. The power just returned and I'm back on the mains. Again, I'm not looking to keep the 508 running for hours, so much as I'm trying to keep the unit from repeatedly getting hit with the power going up and down.