I've got two laptops. One's a MacBook (White) and the other's a newer MacBook Pro. Both have 160gb Fujitsu drives, though I'm not sure if they're the same model. I'd actually like to swap the data on the drives of both computers (completely, including settings). How do I do this?

A) Migrate using Migration Assistant? Not sure it can let me swap.

B) Physically swap drives? Worried that this might be complex, and OS X might not like the swap in hardware.