Hi, I need some help connecting my PS3 20 gig (no wifi) to my wireless network. I have an iMac, Airport Extreme, and an Airport Express. Can the Express be used to connect to the wireless network and bridge the network to the PS3 via wifi? I used to use my Macbook as a bridge but that became quite a pain so I bought the Express. I'm not the greatest with networks so step-by-step instructions would be really helpful. Thanks in advance!