I have a 2013 iMac 21.5 inch and its getting kind of slow strangely enough. For example it takes more than 5 secondes to open a pages doc. Its kind of laggy.. Its probably du to the fact that have a lot of tabs open and more than 10 preview docs open at the same time all the time. Also, having a retina display on every single device but my iMac kind of makes me hate using it. I was wondering whether I should wait for the new iMac 21.5 with retina display. Theres isn't any rumor about its release. Do any of you have any idea when there should be a new one? Could we see new designed iMacs this summer? Should I maybe save my money and simply upgrade the HDD to an SSD inside the computer? Will that make any difference? What would you guys do in my place?