You know what I'd do? I'd set up an 802.11a private network and an 802.11g public network. That way, your computers won't be confused since they work on two complete independently frequencies (you'd just need to make sure you have an 802.11a network card or a 802.11a/b/g combo card). Also, since few people actually use 802.11a outside of the workplace, you wouldn't really have to worry about people seeing it in the first place. I'd do the following:


Internet --> Modem --> Router -->
--> 802.11a WAP (encrypted, disable SSID broadcast, MAC filtering, etc.)
--> 802.11g WAP (open)

AJ