Can't decide which would be better for me. I currently have a late 09 27in iMac and I use to have a mid 2010 mbp(sold it to brother). Used the laptop a lot during the semester but when I came home I would use my iMac. Looking to go back to a laptop for school but should I get the rMBP(lighter and better screen) or top cMBP with optibay hdd/sdd in main bay. I won't have the iMac anymore as I am giving it to my mom so ill only have 1 computer but ill probably look into getting a TB display. Thanks!!!