Some very good advice here. The one thing I would add that I didn't see (sorry if it's there and I missed it) is go hold some in your hands. If you can, even rent the one you think you like. I wouldn't get too hung up on picking a specific size sensor for the type of shooting you're doing now, as I guarantee your style, taste and interest will evolve and change! Pick a camera that fits your needs and has the available options mentioned above but also pick a camera that fits you. The camera will become an extension of you over time........