What kind of monitors can we hook up to the early 2015 MacBook 4K or 5K? I have an old Cinema Display at the moment and feel at some point Im going to need to upgrade the monitor. I want something that I can use to connect the MacBook and a 2013 15" Pro. Are there any 4K or 5K displays out there that would work? Tech seems to be going faster than I can keep up so Im just thinking about the future. I can see me going to 12" MacBooks only at some point. I barely use that dedicated video card in the 15" Pro because I have toddlers.In other words, I haven't played Diablo 3 in a long while. heheh.