hi, this is my first post. and i apologize for any reposts on this topic. im thinking of upgrading my macbook. i currently have a 120gb HD and 1gb of ram! is there a maximum capacity of storage a macbook can handle? on the apple website they say that its a maximum of 200gb? is that true? and where can i get cheap HD for my macbook? followed by cheap RAM? THANKS in advance guys!