where can i get a decent UPS that's safe and works well? i want to be able to rule out my house being at fault, and if the issue continues, i know there's something wrong with my computer or a cable or something. i know for power supplies that go in my computer, there's a whole tier list of energy efficiency and safety or whatever. is there such a thing for UPSes? supposedly they come with software to monitor power failures and safely shutdown; is there a particular brand that's "open source friendly" or otherwise works well with Linux? i would prefer not needing to run proprietary code for such a critical system function as power management, but i'll take any that has good Linux compatibility.