My current setup is this. We have two apartments
Network A Computer A -> Wireless Router A <- Cable Modem A <- Comcast Internet Subscription A
Network B Computer B -> Wireless Router B <- Cable Modem B <- Comcast Internet Subscription B
I want to create a bridge between A and B such that the two are on the same network. I want to be able to iTunes home sharing, share library, etc between the networks. Therefore Computer A would have one IP address signed to it, say 192.168.1.100 and Computer B would have another IP on the same network 192.168.1.129 or something like that.
I would prefer the bridge be over Wi-Fi as opposed to direct ethernet cable. Is this possible, and if so what's the best solution?