I have a situation... I will receive a pair of Mac Minis, one for me, and one for my brother tomorrow. My brother has decided he doesn't want his, and it is a custom configured model (cannot be returned). If Steve releases a new one on the tenth, I can get a refund, and get an upgrade. The question is, can I plug in and use my Mac Mini, and still get the refund? (BTW I called Apple and they said they would allow the return of the custom config. model if there is a new one) Thanks!