There are a few things you can change on the pb when u order it. They have a 100 gig hd as opposed to the 80 gig hd in the apple store. They also have a 128 video card as opposed to the 64 in the 15 inch pb in the store. So im having trouble deciding if i should buy the one in the store and walk out with it or order one with the upgrades and wait. Sorry about the incomplete sentences. Im tired