I plan on purchasing a MacBook with the 8 gig Ipod Touch rebate incentive (Back to School deal). I would be using the ipod for music, uploading videos on it to watch on trips/night, and playing games and surfing the net. What would be a better choice for me? upgrade to 16gig (I'll be paying $100 out of my pocket) or stay with 8gig? I am a noob to the ipod touch and Mac world... so please break every option/possibilities down for me. Thanks a lot!