I currently own a 2006 Mac Mini running OSX 10.5.8 with 2GM RAM, 2.16ghz, 500MB HD and an NVidia GeForce 7600GT graphics card that has served me well but has slowed down over the years to where I get the spinning wheel and crashing more often. I use the computer about 8 hours per day mainly online doing research on the internet with multiple webpages open and watching videos (YouTube, embedded in finance news articles videos that use flash player) so a good graphics card and the ability to have multiple windows open is important to me. For my needs, which is the better value? A standard configuration (no upgrades) refurbished 2012 MD387LL/A or a new 2014 MGEN2LL/A? The major pro of the 2012 would be the lower refurbished price. The major pros of the new 2014 would be 8GM of RAM vs 4GB and an Intel Iris graphics card vs the HD4000. How much better is the Iris graphics card vs the HD4000? Thanks for your suggestions.