I was pretty set on getting the base 15" rMBP because it had dedicated graphics and not all of the other maxed out stuff that I felt like I didn't need. However, now that Apple has decided to only office the dGPU in the highest-end model, I'm not so sure about what I want. I don't game, and honestly, the most graphics-intensive computing that I do tends to be HD movie streaming, but I don't know if that would change if I had a computer that could handle more intensive programs/processes. I'm currently rocking a 2007 white Macbook, and am pretty desperate to upgrade. It's getting to the point where I'm even considering getting a PC laptop and running Linux. Any suggestions on what route may make the most sense?