I have the same problem, same exact keys. I went into work two weeks ago, and my perfectly cared for Pro simply started producing the errant keystrokes. It has been babied, no water, no dust that I am aware of. Went to Apple Store, recommended a replacement upper case for nearly 600 Euro.
I took the machine back to my flat, suffered a bike accident on the way; when I turned on the machine, it seems to work, but intermittently fails with the same keys. I know that this sounds unscientific, but the blow to the computer seemed to re-secure the connection or move what I presume to be dust particles from the connector. So, when it acts up, I simply take a fist to the area of the keyboard that doesn't work, and what do you know, it works!