Hi, i have a 700w power supply in my computer that i recently installed because the last one short circuited. Thank god none of the other internal components failed. Is there like a surge protector or something that will protect my pc from any damage from psu failure. Like an auto shut down feature or reserve power. And i need it to be low price. I live next to a bestbuy, radioshack, and target. If you can find anything from there it would be nice.