Ok, heres the deal.I am running cox cable in my house and my dad is running dsl in the same house.He uses a modem with built in wireless capabilities and has a wireless card built into his windows based laptop. I want to get a 30 dollar d-link 802.11b,g wireless router for my room so that i can be online all over the house. How will the ibook know which system to connect to? Will it be confused between the dsl signal and the cable signal? Do i even need to buy a wireless router if my dad has dsl wireless built into his modem then can i just bring home the ibook and it will connect to dsl???