After coming across a sudden windfall, I am now faced with a dilemma and was hoping to get some advice from you all. Here are the two machines that I am now deciding between: 13" rMBP i7-2.8GHz Haswell 16GB RAM 512GB SSD 15" rMBP i7-2.3GHz Haswell 16GB RAM 512GB SSD nVIDIA 750M dGPU Here are my intended uses: Light coding (occasional work with VMs), video editing (FCP), photo editing (Lightroom and PS), web design. HEAVY research. I do a lot of multi tasking. I go through tons of PDFs (probably close to 30 open at any given time), Evernote, Word, etc. Music editing (girlfriend is a violinist and I help her with recording and post-production) Occasional gaming session to blow off some steam (used to gaming on a desktop rig but that is now in storage and I do not see myself setting it back up in the foreseeable future). -HD Video My Considerations: Cost is not a huge factor as the difference in price between the two machines for me would be ~$230 and I will not be replacing this machine for years to come. Portability is somewhat of a concern to me as I commute with my laptop stowed away on a daily basis. The 13" seems to be the ultimate in portability but I'd have to sacrifice quite a bit to make the switch, coming from a 17" MBP. I've grown used to the size and weight of my 17" and going down to the 15" rMBP is already a huge jump. Screen-size is of utmost importance to me. I do have my computer hooked up to a 25" LCD at home but I spend most of my time at the library. I need the screen real estate to have Preview or Safari open side-by-side with Word or Evernote. Which machine should I go with?