If your running a patch blocker, you'll need a PC.
Wireless is used for people who have their modems, and internet connections in separate rooms, or not in reachable distance of their Ethernet cords. I use a wired connection, and all you need to do is run the cord from your Modem, or Router into the back of your PS3 where its supposed to go, go to your network connections, and go into internet set up, and preform the automatic set up, and it'll do it for you.