I have a power strip/surge protector in my living room that has A/V system, Tivo, Wii, Subwoofer, IR relay system, Internet signal relay system (goes through the wiring), and some assorted other things plugged into it, and another one in the back of the house (the same room as my x10 laptop system) that has p/c, lcd monitor, lamp, modem, printer, pc speakers, phone chargers plugged into it, and another in the middle of the house that has a landline phone power and iphone power chargers in it. I was considering getting a 15amp filter for each strip to basically cover a whole bunch of bases at once. Would that be OK, or would it be better to get a filter for each individual plugin?