[LIL L]

i want to buy this computer and instead of having the ethernet cable hook up like i have now, i want one of those network cards that have the pieces so i can hook my internet cable line directly to the back of my computer instead of through a modem. also you can hook you cable to it for media center. i can't find it on tiger direct, pricewatch, or office depot. however i have seen it in the office depot store. i have no idea what its called but it have like two or three of those pieces for direct cable hook up, and maby a ethernet port. an internal modem i guess. it was like 70 dollars. i would just go to the store but i want to go ahead and finish this order before i leave and spend my money on something stupid. can anyone help me out?