Check this link out... never tried it or heard feedback on it - but it's one of two ways I just found online that PS3 users are claiming works!
1st Option - Ethernet Crossover (here):
http://www.ps3chat.com/playstation-3...ut-router.html
2nd Option - Cradlepoint Wifi Access Point Router (here):
http://www.newegg.com/Product/Produc...82E16875997433