My UPS has gone bad..does not work on battries when thre is a power cut. I was using TVS ups & it wasn't good atall. I'm planning to buy a new UPS.Can u suggest some good brand names to look for. I have: P4 2Ghz Samsung 15" moniter Motorolla Cable Modem Creative Speakers HP 1115 Printer/scanner 2 in 1. I need to know which is a reputed brand.And what specifications would suit me. Thanks!!