I just got my rMBP and I am migrating only my picture, music and videos (Almost 200GB) and its taking 60 hours!!! 3 DAYS, REALLY!! I am doing it via WiFi and I know thats slow but come on! Whats the best way to do this? I just want my iTunes files, thats it! Im also worried about stopping it mid-migration. I wonder if it does harm to my new computer . (& I stopped it once at the beginning because of the 63 hour estimate, so to do it twice and having the second time being stopped even further in the migration. Than cant be good, can it? Any suggestions? or It is what it is FML , its like torture for the 1%ers .