Ok, I'm new to the Wireless environment with Mac, so please forgive me. If I buy the new 17" MacBook Pro, do I need to get the AirPort Extreme Base Station to enable me to surf wirelessly? It says it has built in AirPort Extreme wireless networking, but doesn't explain how to set it up. It seems like I need the AirPort Extreme Base Station as well. Am I correct in that assumption? Thanks!