external keyboard works. should i replace internal keyboard? do they break often? do they get too hot? it is in air conditioned room. I am on using it the most often. ...but with an external keyboard. what external keyboards do you recommend? please tell me...as I am borrowing a keyboard from one of my imacs. I prefer an apple/macally one lol ...and I would like an "extended" one, with hot keys...especially the Power Button. ...and if corded, a LONG one ... or I could get a USB extension cord lol.