I want to "be in possession" of my PowerBook by June 25, so that I qualify for the $100 education rebate... if I order online, how long does it usually take to ship? Will I get it in time? I only have about a week left. Would I be better off going into a store and purchasing my PB? Also, if I do that... can I get it customized (i.e. 128MB upgraded VRAM) in store? Thanks in advance.