Hi, I have 2 MacBook Air's (2012 and 2013) that both need simple dual screen setups (2x 17" monitor with VGA and DVI ports). Can anyone suggest a dual screen setup that will definitely work (as cheap as possible!). Reading some links in the forum I am now totally confused as to what will work. Apologies for probably repeating what has already been asked but new to Macs. 1 screen connected via Mini DisplayPort to DVI Adapter 2 screen to use?