For computers I have had good luck with Tripp-lite, Apc, and Liebert. Of course I would not use any of those for audio equipment. Battery replacement is a consideration when looking to buy one. Apc is the easiest I've worked with so far.
Anyone using battery backup
Does anyone have their computer, HD(s) & LCD on a backup just in case of a brownout just to give you time to shut down? If so, what are you using?