Hello folks. I am planning to upgrade my 6yrs old imac to a Retina imac. I would like some suggestions in regards to configurations on a new Retina iMac. I have decided to go with an i7 with 512ssd, stock memory which I can upgrade later. I am stuck on whether the upgraded GPU would be worth it. I do work with photos, videos and music. I am also a casual gamer. A friend has recommended me to just get the standard gpu. He stated that his fully upgraded RiMac has high heat and loud noises. My biggest fear is the longevity of the system due to heat. Is he just being paranoid? Should I just go for the upgrade gpu and get applecare? Any helps appreciated thx!.