I've decided to buy a 2012 Mac Mini and want the optimal storage configuration. I have about 360 GB of frequently accessed data and another 400 GB of infrequently accessed data (~760 GB total data). What's the best option? BTO Apple Fusion Drive (128 GB SSD + 1 TB 5400 RPM HDD) BTO Apple SSD + External HDD (256 GB SSD + USB 3 HDD) Custom SSD + HDD (512 GB SSD + 750 GB 7200 RPM HDD) Custom SSD + HDD w/ DIY Fusion (same as above w/ Fusion applied) Both of Apple's BTO options (1 TB Fusion and 256 GB SSD) are reasonable, but have drawbacks. Fusion means that a good chunk of data will not be accessed at raw SSD speeds. The BTO SSD requires data to be on an external, which can be cumbersome in day-to-day use. Then we arrive at the last two options, all of which require opening up the Mini and putting it back together again (using either the OWC or iFixIt kits); tedious to say the least. But the upshot is I can put in some really powerful storage components: big SSDs and fast HDDs that trump anything Apple offers BTO. So... Is Fusion still "SSD-like" when you load it up with almost 800 GB of data (including large iPhoto and iTunes libraries)? Is it relatively easy to do a DIY storage upgrade on these Minis?