UPSes are fine things to have. Note: most consumer UPSes are under-designed / over-rated in order to hit a low price point. Also: very few UPSes, even expensive ones, protect well against surges & spikes no matter what they say on the promotional material. They should strictly be used to provide backup power. In fact, it's not uncommon for large surges/spikes to nuke the UPS too. I have a Brick Wall brand surge/noise/spike filter upstream (line side) of my big UPS, since I can't afford to replace my UPS any more than I can afford to replace my computer gear.