getting my replacement 2.66 c2d mbp 15" on tuesday in the mail in exchange for my early 2008 that's a lemon. either way, still really happy to have a unibody and probably don't need the arrandale power (especially for a technically free replacement) but can i take it to an apple store and exchange it for an arrandale if it comes out this tuesday? or maybe even next tuesday? only thing is its an advanced replacement so i have to ship them back the early 2008 in the retail box of the unibody mbp. so it would have to come out this tuesday so i can do box for box exchange then ship them back early 2008 in the arrandale exchanged box. would apple stores allow this? i technically have an order number but i haven't paid for the machine since a customer service rep set up the advanced replacement after all the problems ive been having. if not, i'll be more than happy with the new computer, but just curious on what insight you guys have. thanks a lot.