Sorry to bother you guys one more time about the never ending dilemma "shall I buy a 21" or a 27" iMac, but I'm about to buy a new machine and it seems I'm a little different user than the average posting in the forum (vdeo editors, big gamers, heavy graphics movers). My tipical usage: 80% internet browsing and streaming from YouTube and similar, also HD. 20% photo viewing, Office-like applications and basic video editing. My choices: 1. 21.5", Broadwell 3.3GHzI7, Intel iGraphics 2. 27", Skylake 3.2GHz, dGraphics Both with 16GB RAM and 1TB Fusion Drive. For room availability reasons, I would go for the 21.5" since my desk is pretty small...but for my tipical usage, from the performance point of view would you advise anyway to go 27" model or you don't see any relevant difference? dGraphics would help me more than I7 3.3GHz processor?