If you go ahead with wireless, make sure you do the following to secure the Wi-Fi network:
1. Change the SSID and turn off broadcasting. (When you setup a new laptop or desktop to access the wireless network you'll need to specify which SSID you set in the router so it can look for the network.)
2. Turn on MAC Authentication. This will allow for only the specified MAC addresses to access the network. Each computer with a network card has it's own hard coded MAC Address, and without specifing it to the router, it will not be allowed on the network.
3. WEP...It can be broken easily...but this is why you have MAC authentication on...Turn WEP on and specify the keys in each machine. Keep in mind, this will slow your speed down.
That should be more then enough, particularly MAC authentication (did I stress this enough?)
Hope this helps...
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