Hi, I am currently looking to buy a desktop to supplement my MacBook Air as I have no storage left and it isn't quite powerful enough for some photo editing and coding needs. I have decided on an iMac and after a visit to the Apple Store would love a 27" model. As I am used to an SSD, I would want a fusion drive and 8gb of RAM is the minimum. I have found a refurbished late 2012 27" iMac with 2.9GHz quad-core i5, 16GB RAM, 1TB fusion drive and 660M graphics for £1000. A new 21.5" with 2.8GHz i5, 8Gb RAM and 1TB fusion (albeit the 24gb SSD version) would cost me about the same with a student discount. Will the 2012 model be nearly as powerful as the brand new 2015 model? I would love the extra screen size, more SSD on fusion and additional ram with the older model but wouldn't want to sacrifice too much on processing power or graphics. Any advice would greatly appreciated.