Just picked up yesterday a used mid 2011 iMac 27". Has the i5 2.7GHz, 1TB 7.2k, 4GB RAM which will be swapped out top 16GB and a 500GB Samsung EVO SSD. I already have the parts ordered. I did some reading and I've seen some threads saying that you can swap out the i5 CPU to a better on, which I will NOT be doing. This one seems to be running fast enough for my needs. I mainly will be using this in my room to listen to music, since I am a music enthusiast. Music setup: Tidal HiFi on the Mac > USB > Centrance Dacport HD > Klipsch ProMedia 5.1 THX .... OR one of the 4 headphones, HiFiMan He400i, Sennheiser HD650, Grado SR80i or ATHM50. Been an Apple COMPUTER guy for a while. Mainly used their MBP or MBA for 5 years now. Finally decided to jump ship and get a dekstop. Just felt like sharing.