http://reviews.cnet.com/Logitech_Z-640/450...7-20439326.html Logitech Z-640. They may be cheap, but they sure have a lot of power in them! I usually keep the volume level at 1/4 past, but they still give off a lot of power! And when I really have them on loud, my parents can hear them in the basement (two floors down) when they're watching TV! To answer Zxian's suggestion, I highly doubt anyone would be using my wireless network while in the backyard. I have 2 wireless routers (one b and one g) and neither of them ever have major traffic going through them...