Hi all. After having a few MacBook pros in the past. And now not really using a computer that much. Mainly using ipad and iPhone. We have a windows pc used for music and movies and for the wife to upload photos from her camera to Facebook. We've been looking at an iMac. I can't find an option of having anything larger than a 1TB HDD. My CCTV system contains 2X2TB hard drives so why cant the mac which costs over 3 times the price. Our current pc has 2TB of space and I feel that with a iMac I'd run out of space. And seeing as it can't be easily upgraded. And I'd rather not buy an iMac and then take it apart to upgrade the hdd. IMO having the iMac means less cables and mess on the desk and I'd rather not have a external hdd plugged in taking up space.