Hello all, This fall I will be beginning my degree for Mechanical Engineering at RIT. I have been saving for my college computer, and up until recently i was sure i was going to get a fully loaded 15" retina. However, i recently realized that i could get a 11" air and a 21.5" imac for the same price. For an engineering student, which would be better? I need something with a dedicated graphics card for CAD and other engineering software. Being that i haven't been to school yet, I'm not really sure what all I will need my computer for in class. I am under the impression that i will probably be using it for notes and general browsing, because any classes involving computers will be held in a lab. Any cad work i would probably be doing in my dorm anyway while plugged in. So down to the real question, which would you do? 15" Retina MBP: 2.7 ghz i7 with 3.8 turbo 16GB ram 512 gb SSD GT750m with 2gb ram ----------or------------ 11" MBA: 1.7 i7 with 3.3 turbo 8GB Ram 128GB ssd ---and--- 21.5" iMac: 3.1 i7 with 3.9 turbo 16 gb ram 1tb hard drive GT750m with 1gb ram The combo option would be slightly more expensive. One machine will be boot camp no matter which option i decide to go with. Let me know what you guys think. Thanks in advance.