The only thing that really matters is how much your drawing.
None of you guys have that much stuff drawing power, it's all small crap. I doubt you guys are going over over 500 watts. It also matters how much you have plugged into the circut, most rooms will only have one circut in your houses.
For me on one circut, I have 2 switches, 2 hub's, one Cisco router (831, beefy router
), WRT54GL Wireless Access point, 1X Server, Backup UPS, 1X modem and Wirewerks fiber converter.
Guess how much power this uses?
68.2 Watts, I just measured. And we can put a total of 1800 watts or so on your standard 15 amp circut.