I'm looking for a used display on eBay in the 27-30" range to plug my 2010 MBP into when I am at home. The display will just be used for doing office type work. I'd like to keep this as inexpensive as possible. I understand that my MBP only outputs to 1280x800, but what resolution should I be looking at to "future proof" for my next laptop (which I imagine will be something with Retina). Also, what other features should I be looking for in a budget display? Right now I just have my eye on some Dell, HP, Samsung, and ASUS brand displays.