If you wish a safer networking, get multiple routers, and have wireless networking on separate public IP address which "Physically" separate from your internal networking system.
I hate wireless but I gone ahead because my wife now has MVP, and I got a mini lappy which I used solely to surf the internet, nothing personal on this machine. I had it on its own public IP address, the rest of our computer networking is on other public IP address.
Wireless is not 100% fool proof and is 100% invisible and that is BAD! You can't see if anyone breached it. EVEN if you set up strong security, it can accidently disable without you even knowing it, scary!

