Hi i got my laptop the other day my 2nd mac and very chuffed with it. I'm not a heavy gamer only really play wow now and then and loaded it up fine on the 13" with no issues. I was actually supprised at how good it was tbh. now i've noticed that i feel like i could do with a monitor, been looking at dells but some of them can be highly expensive. whats the max screen size you'd recommend 21.5, 23? i think i'll only be using that display when connected so fingers crossed wont be to demanding on the graphics card which is my main concern atm when running wow larger. also as a side note if you plug in a display and close the lid does the mac automatically know to go to the display?