If you have a wireless-AP you can hook that directly into a standard PCI nic
on the BSD machine. I have a similar setup where I'm at. I'm letting the
BSD do dhcp/firewall/nat/router/dns for each of my LANs. The AP is doing
WEP but for added security I have an encrypted VPN for the wireless LAN
Yes it's very possible. :-) You may want to check out FreeRadius
(http://www.freeradius.org/). It is a free radius server which is what
I think you are looking for. I will state that you need to take some
time to read up on this a little bit as it can be irritating to set up
a radius server
