My current setup is a 2012 mac mini with an i7 and 16GB of memory. It has an apple fusion drive and I have a 27" thunderbolt monitor. I have been doing basic video editing and web surfing on it. It was my first mac, now with handoff and my iphone I can't imagine not having a mac. It does bogs down once in a while, but the mac mini is fast enough, but the thunderbolt monitor has started making random high pitch noises and its getting annoying. I like that the thunderbolt monitor has everything like the face time camera built in, but I'm looking at about $500-600 for a new one. I think it might be time to look for a new, refurb, or used 27" iMac. I am thinking an SSD is a must and would like to be able to at least upgrade the memory, but not sure what years models allowed that. Any suggestions for what specs and year get you the best value for an iMac for someone that doesn't know a lot about iMacs?