I couldn't find the perfect place to put this thread, so I put it in here. I have a 13 inch MacBook Pro and am interested in swapping it with someone for a 21.5 inch iMac and buying an iPad. Since both my MBP and the entry level 21.5 inch iMac have 500gb hard drives, would I be able to put my current hard drive in the iMac, and have the other person put his hard drive in my MBP? Would there be problems with this, or would it work without trouble? Has anyone done this before? Thanks in advance.