I want to buy a good UPS which should long lost for atleast 30min. Please give ur suggestions My PC configuration is: Pentium 1.5Ghz Motherbaord Intel D845WN 300W SMPS TV tunercard(mercury) Graphics card Geforce 2MX(Tv-out) Lan card connected(PCI one) Modem 15" Monitor DVD writer and CD writer. I also wish digit would have reviewed some UPS this time. They did't reviewed UPS till yet in there mag(Digit). Please suggest one UPS..