With that many wireless devices, using 2-3 access points might be advisable. Get some old routers, turn off DHCP and give them IP's like 192.168.1.2, 192.168.1.3 and so on (if your main router is ...
I don't know if bridge is the right word to use but is it possible to have a wireless router connect to a wireless wifi network and then allow computers that are connect to the router via ethernet to ...