Greetings all, I am very satisfied switcher. I have purchased a macbook pro and also in the process of buying a macbook (refurbished). My current setup is I run my mbp with an external monitor. I use the mbp's screen also, so I currently have dual screens. My concern is that if I always run dual screens will it stress the GPU in anyway or will it stress my mbp lcd screen also (dimmed after long use)? Its my 1st and I am "babying" it soo much. I also have the specks hard case on, should i take it off for better cooling or it won't matter much.