Hi folks thanks for the response it's greatly appreciated. I did contact APC sometime ago about puuging the Power Conditioner into a large UPS with all the components pluged into the Power Conditioner, however, they advised against this approach. Therefore I was wondering whether the reverse will work i.e. pluging the UPS in Power Conditioner and pluging the components into the UPS. The reason for using several UPS units it that the Power Conditioner has different outlet plugs for different components i.e. a seperate power out for TV, DVD, CAT/SAT, Monitor, Subwoffer etc. so my plane is to use a seperate UPS for each. I now it's a bit of overkill but I can't of another way to both working toughter. Any further comment/suggestions will be greatly appreciated.