Macbook or Macbook Aluminum?

I really don't have much need for a new computer right now--I'm just indulging myself since I got the insurance money from my accident last year, but if and ever I do go and get one, I wonder if I should be getting the new macbook aluminum, or just settle for the white macbook with 120 gig. Or even better, should I be getting a Nikon d90? hmmmm....