@Newbie - We bought the Defender 502-4camera system and found that the system did not work on our Windows 7 computers. I spent 4 days trying to get the video to work on the computers and with tech support. He blamed the problem on my computers and IE9. The tech even erased all of my configuration on my router after taking control of my computer to set up network viewing. Really don't know exactly what he did but I could not get the router back on line and since Netgear tech support costs so much, I purchased a new one. We returned the system to Amazon for a refund. I saw where you have decided to buy a system from Costco. Would like to hear how you like it.