Why dont you let the 360 do the dialing? connect your phone line to the modem, pull the ethernet cable from the modem to your 360, and set up the PPPoE dialer from within 360's Network blade? Or do you still want to have internet connection on your PC as well? If you're tight on abudget, i suggest you try what i posted, but you'll have to keep swapping the ethernet cable everytime you wanna switch between the 360 and your Pc, but it will cost you nothing.