I know about other great US computer science schools, but studying in America is only something I would want to do at MIT but I might have a look at Stanford, and I would look into a formal qualification and I'm not a one trick pony, yeah I also have a huge interest in Astrophysics but it isn't something I would want to work in, it would be a backup if anything.
And no, nothing I would do would be to beef up my application, that would be secondary to the purpose, I do wish to learn how to do these things, If I couldn't find a formal qualification would practical evidence of my skill be near to that? For Example my brother runs a web creation business, If I helped out in that and made a few of the sites he designed?
Thanks for your contribution to this thread by the way, I'm starting to understand more about what I am asking in the first place, really my goal is to go to one of the best Computing Institutes in the World, MIT from what I heard was this mystical place but clearly there are others just like it.