|Why would you have a public wireless scope and connection to the server? That would give the public access to your server. No security concerns?|
Having two nics in the server in the same subnet is pointless and can cause you serious routing issues because of loops.
I doubt the linksys will accomplish what the cisco is doing. Cisco routers can have multiple subnet interfaces on the same interface. The linksys can't do that.
Why is it you don't have access to the cisco?