Hi all, Looking at getting a refurbished iMac. The spec is; 27-inch iMac 3.3GHz Quad-core Intel Core i5 with Retina display. 8GB memory 1TB hard drive How future proof is this please? It would be a business laptop so used for spreadsheets, tableau, emails and nothing intensive like photo or video editing. My other query was the display - can I hook a second display in? And can I get a second display that matches the first ? (OCD) If not,do I need the Mac Pro to get 2 matching displays? Thank you all.