I was going to get the imac but for some reason i can't, no HDD replacement and Hard to ship to my country. If you have suggestion tell me. 1. Can i remove the battery form the MBP before opening it the first time ? Is it safe to power my MBP without the battery for a long time ? I will put the battery back when i go abroad. 2. Same as 1 but for HDD, Can i replace it with SSD before opening it the first time ? 3. How is gaming in it ? , And if you are choosing between rMBP (playing in 1440 X 900) and non-MBP (playing in 1440 X 900), Which one will you get ? Thanks for answering.