I recently ordered a 13" MacBook Pro (2.4 GHz). I opted for ordering directly because the Apple Store won't configure it with a bigger hard drive in store. So I got it with the 500 gb hard drive online. However now they say theres been a shipping delay and it won't be here until the 5th or the 6th. And I have to be back at school on Sunday. Which means I either have to change the shipping address to my school residence or purchase it some other way. I know you can replace the hard disk without voiding the warranty, and that it's not that hard. Should I just go get a 250gb model from the apple store, and then replace the hard drive? What brand of hard drive should I get?