First let me say I have no idea what the right category for this question is, but if you have a suggestion of where to ask this question and get better answers please share. So I am looking into getting an uninterrupted power supply for my PC as I have had the power fail 4 times in the last two months and it's driving me nuts when I lose my work. The problem is that I know nothing about a UPS. So my question for you is how many watts should I get, what does AV mean and how much do I want, and what is generally a better brand APC or CyberPower? Thanks for the help in advance.