I live in south Florida, the lightening capital of the world. I get concerned during the summer when very powerful storms move through. I have my iMac and my PC connected to a 1500VA UPS. Nevertheless, Im wondering if it would be advisable to hook up a quality Belkin or Monster Surge Protector to the UPS, and my iMac connected to the surge protector. Would this provide double the protection, or would it be a waste of money?