Heh. Unfortunately, doing all of this exclusively through the online courses would be far less socially recognized than said double major in a major university. I have no easy access to major universities, at all, let alone in ones that hold these courses, and that's only the start of my troubles. (hint: Colleges and Universities sometimes make people sign certain "contracts", and these are usually automatically disclosed to all affiliated educational or academic institutions.)

On that note, the major downside to the Coursera online classes is that they only take place at certain predetermined times, and many of the courses I want are TBA / don't start until a very long time in the future, or have already run with no planned reruns (the Functional Programming course linked in the recommendations is an example of the latter, so essentially we can't take the recommended course at all, period).