Hi all, I've been a windows user all my life. Would like to get an iMac now.Some questions regarding which iMac I should get for my usage. 80% of the time I will be surfing the web and using office to do my assignment.20% of the time I will be playing Simcity, watching videos and light photoshopping.im looking at the 21.5 inch iMac. I also have a huge database of photos. 1.Is the new Intel iris pro enough for my daily usage? Or should I get the 21.5 with the 750m? 2.Should I upgrade to fusion drive or ssd? Thanks in advance for all your advices!!!!