I need to get a UPS for my MP because the power regularly goes out for short periods in my area. I have very little knowledge about UPSs and don't know what sort of specs I should be looking for, where the best place to buy them is, etc. Also, is there a way for me to set up some sort of script or app that will safely shut down my computer when the power goes out and the UPS kicks in (since I don't want to pay for a UPS that will power my MP for a long time)? In case I'm away for the weekend when the power goes out. I virtually always leave my computer on because I download alot of (legal, of course) stuff constantly.