Good morning, I'm a long time lurker on the boards, but rarely post. I've been waiting to get a new iMac for about a year now. I have a 2007 iMac and iOS has finally surpassed the computer's capabilities. It runs incredibly slow now. She's been a heck of a machine, but it is time to move on. I am looking at getting the 27 inch iMac with the 3 TB HD. I do very little gaming (the last computer game I was really "in to" was Civ II). I mostly use my computer as my whole-home entertainment server. Digital movies, TV shows, music, etc. I also do a fair amount with photos, internet surfing and document creation for work. While I consider myself up to date with technology, I've never been terribly knowledgable "under the hood." Given that I don't play a lot of games, is there any reason for me to get the mid-level model 27-inch riMac with the AMD Radeon R9 M390? I am looking at the base model 27 riMac with the R9 M380 and I will upgrade to the 3 TB HD. Any advice/suggestions are appreciated. I like the 27 inch because I can upgrade the RAM myself down the road and I can get a larger built in HD. I've got about 1.5 TB of movies and music on an external HD now and would like to store all that on one machine. Thank you.