Also, looking at your profile statistics, you haven't been visiting the project announcements forum. Browse other people's projects, see what they're using, and learn from their experience and mistakes. It will be easier than trying to keep up with all these new question threads...
Hold off on ordering ANY parts until you've seen all the options out there. You don't want to have a pile of parts you regret ordering because you changed your mind later. It's exciting when first getting into this hobby, you might think you know what you want now, but plans will change... and then they'll change again.