My 2012 MB Pro 13" died last October and I've been using 2011 iMacs at home and office. I want a laptop for portable use but will mostly use it with one or two external monitors in my home office and work office. I want to get an i7 with 8GB and 512GB SSD. Any thoughts about 11" or 13" would be appreciated. Funny that I still use my 15" 2008 MBP to do my taxes because it has Windows XP on it. Thanks.