Which dry puppy food is best for 8 week old boxer?

I won't be getting puppy til 08/12/2010.have been doing lot of research on puppy food.I am going to make a guess they will be on Purina Puppy Chow.[Will ask to be sure].Kirkland brand seems to have the right ingredients.Alot of premium brands out there.There are some not sold in our area.