2011 i7 Mac Mini server upgrade to two 500GB SSDs or one SSD + HDD combo. My Native Instruments libraries are currently in the secondary HDD. OS is in the primary HDD of course. If I upgrade the primary drive to SSD I'm still going to be streaming samples from the 'slow' 7200 HDD. SSDs will mostly increase what? App opening time? Everything? It's not like the CPU that affects all areas so I'm wondering if I should either upgrade both HDDs to SSD or keep everything the way it is stock?