I originally added a second router to my network (192.168.0.xx) connected using the WAN port running DHCP (192.168.1.xx). I added iptable commands in the firewall script section to allow access to a couple printers on the main network (192.168.0.xx) but block everything else except out to the internet. I'm using it as a guest wireless network. Not sure if that's the best way to do this. Now what I've done is add a couple more AP's set up the same way to extend the guest wireless network...
Multiple freshtomato AP's question
Multiple freshtomato AP's question