You might want to ask yourself, "Why am I choosing to not use an RDBMS?" If the answer is "because I know it will save time" or "because I'd like to explore th

You might want to ask yourself, "Why am I choosing to not use an RDBMS?" If the answer is "because I know it will save time" or "because I'd like to explore the possibility", more power to you. I wholeheartedly encourage it. If the answer is anything else then you should just use one, because that path will save you time (possibly a lot of time). Check out Rails. The ORM is so well done that it feels like you aren't using a database at all.