I have a 2012 21.5 iMac with 1TB HHD and 8gb ram. I love it in everyday except its getting a little slow, taking sometimes up to 4-5 min to boot up. Also I do many photo editing for my program at school and I will soon start working with #d design animation and 3d Matrix animation...So I think a ram update would make it MAYBE more future proof..I need this computer to last me 4 more years before I buy a new one. So would changing the Hard drive to an SSD and upgrading to a 16gb ram make it future proof????