ok so ummmmm.....i wana get halo 3 when it comes out but I bet stores will run out of stock or somethin on the first couple of days, so i was thinkin of pre-ordering....do you pay extra to pre-order(besides shippping)? In the eb-games website they said you pre-order and they'll send it to you right away on the 25th, any1 know how I can find out how much the shipping is?