Thanks for the reply. I am starting to lean toward the idea of the fusion for the reasons you mention.
I see your point about OS X forum but I guess I was more interested in the opinion of those who use FCPX and Photoshop. Would it make much difference for Final Cut, logic X or photoshop?
I already manage my files quite a bit using external drives USB3 for video and audio files, but I would have to manage a bit more to keep the boot drive less than 60 percent full as I try to do now. Originally I was thinking separate drives but having a fairly large SSD (480 rather than 128 or 256) should mean more of the used data will reside on the SSD.
Kirk