I had heard rumors about high speed internet coming to FW so I contacted Disney to ask. Here is there response:
High Speed Internet Access (HSIA) is available at preferred campsites.
Requirements: Requires a Local Area Network (LAN) cable or in-room
connection.
Price: $9.95 for 24-contiguous hours charged to the room account.
Technical Support: Is available 24 hours a day, 7 days a week by
calling the Smart City help desk directly at 407-938-HELP.
The part about 'in-room connection' doesn't make any sense. But it sounds like you can pick up a cable modem and they charge you 10 bucks a day. You would probably need a CAT-5 network cable to connect your computer to the cable modem.