hey guys i want to buy a new display.but i am confused between dell st2220l and Benq G2420HD.how much difference is there between these two lcds?i know its 3 in but is how exactly big is the Benq G2420HD?i will use the moniter for daily uses,watching hd movies and playing lot of games.i need a hdmi port in the display.does Benq G2420HD have that?thanks