I've thoroughly enjoyed my early 2009 Mac Mini, but decided to get a late 2012 i5 before they become collectors' items. I intend to max out the RAM and add an SSD drive and run Yosemite on it. Questions for those who have done this: For best performance, what do I put on the SSD vs the 500GB rotating drive? Should I isolate just the basic OS install on the SSD or should all my apps go on there also? I am considering a 250GB drive - is that large enough? Too large? Thanks in advance.