Originally posted here by Timmy77
Rotating the passwords is a good start, but you should also consider MAC address filtering, to prevent unauthroized computers from connecting to your network.

The newer access points allow WPA, which is a more secure encryption standard than WEP.
MAC address filtering is a good idea, but it's easier to spoof a mac than crack a wep key. All anyone has to do is fire up kismet, sniff a client, then issue one ifconfig command to change their mac address to one they want to be. The best solution is to take many different approaches, most (if not all) of which are outlined in posts on this site (one is a wireless security tut) and elsewhere on the web. WPA will be much better.