I have a new setup at my house. I just purchase a 30 in HDTV Widescreen Panasonic which will be connected to my surround sound, dvd player, p2, etc. Should I buy a Monster Surge protector? The reason I'm confused is because I was looking at an APC surge protector that had 3500 joules of protection for 45.99 while the monster one only has 1750 for 99.99. Any reason why there is such a big difference? What should I be more worried about, Joules or Brand?