So my shiny new 27" imac with 256 SSD and 2 TB HDD arrived today. I would like to keep all applications on the SSD and have all other data on the HDD. The question I have is how do I migrate all files (other than apps) from my "old" imac to my new imac? I have never done this before and am looking for an idiot step by step guide (and yes, I am the idiot here). Any help is greatly appreciated. Thank you!