What do you mean that "None of my computers are networked together. They all use the Cable modem independently." Aren't they all connected (wirelessly or wired) through the router? Isn't the router the only device that's actually connected to the cable modem?
Your wireless hosts are finding the Netgear Access-Point because you haven't specified in the hosts to which network you prefer to connect. This is done by specifying the SSID of your network. It's a very good idea to change the SSID of the network in the router from the default to some name that's more likely to be unique in your neighborhood.
How you specify in the hosts which SSID to connect to depends on the Operating System(s) used in the hosts. You didn't say which OS(s) you're using. In Windows XP you put the desired SSID on the Preferred Networks list.
Ron Bandes, CCNP, CTT+, etc.