Today I got a refurbished 15" uMBP. It came with a 250 gig hdd @ 5400rpm. I also have a Mac mini which has a 320 gig hdd@7200 rpm. I want to pull the 320 out of my mini and put it into the uMPB as is, meaning with all the data that is on it. Will this cause any problems? Will i need to do anything to the harddrive or can i just pop it in and it will detect all of my hardware settings? Has anyone done this? Let me know. Thanks.