I know what both drive do and I seen a few threads but nothing on going from a SSD to fusion I am getting ready to order my maxed out Imac 2013 27" I am stuck. I have a macbook pro retina with 512gig solid state drive. Its fast and snappy. I am debating on ordering a imac with a 3 tb fusion drive. Since I have been using a machine with a SSD am I going to notice a difference using a fusion drive. I never get any beach balls on the macbook pro retina and I don't want any on my new Imac. I don't game I just edit photos and surf the web and do very little light video editing. Thoughts on ordering this fusion drive for the imac ?