Hi guys! So long story short, I used to work at Microsoft, build my own pcs and love most things Microsoft. That was before I had my 3Gs, ipod touch, Iphone 4 and now Iphone 5. I am getting too much into the ecosystem that I have decided to leave my pc behind and move towards and Imac. However, that is where I am still a newbie in selecting the proper system. I havent had a mac since my old LC3. Anyway, I currently have a 24 Dell monitor that is more widescreen then the 24 Imac monitor. I feel that I would benefit more from the 27 because I want to do a lot of video editing etc. and the 24 looks more square. Iwould only have about 1100 to spend so it would have to be craigslist or ebay. I would look for one that still has apple care on it of course. So my question I guess is for basic video editing and streaming to AppleTV would I need a quad core or could I get by with a duo core? Also what happened to Idvd? How can I still get it? Any other system specs to make sure I look out for? Thanks!!