Last question. With the exception of change reviews, all of the practices listed are the core of Agile development. Sure, there's that whole philosophy and manifesto stuff. But IMHO, if you are doing short iterations (for real) and many or most of the other practices, you are doing Agile development. No 3x5 cards, pair programming, certification, or manifesto required. Just don't like the idea of a new word or "joining a movement?" No problem, improving your dev process is the goal, not "doing Agile right" or anything else for that matter.
For any of the practices that you are not currently doing but that you believe have a significant benefit, think about what the combined effect would be if you implemented all of them. It may take time to achieve, but it will definitely be worth the investment.
So, you are starting a new software company with your own hard-earned cash. What software development methodology will you use?
Next: Suggest additional practices to add to survey