Euphamism: First off, kudos for converting to Islam in a tiny town in Northern Idaho. You obviously aren't too concerned with what people think of you. Or maybe you enjoy being different. I am generally of the opinion that I don't do things just for the sake of being different, I need a better motivation than that, yet I do kind of like being different. I've have also always been concerned with what people think of me; I crave understanding and acceptance, and there is a part of me that wishes I could please everyone all the time. But I try not to allow that to control my decisions, to run my life or even to interfere too much. Seeking to please God above all else has been a good antidote, I think.
Question, though... how can you really say that this is not driven by emotion, unlike your previous religious experiences? I have no doubt that you have found something positive and fulfilling within the Islamic tradition, and part of that seems to be the explicit disavowal of personal fulfillment. (Narkissos has written some great stuff in the past about the appeal of self-renunciation; mostly in a Christian/JW context, but it sounds similar to what you are doing now as well.) I maintain that my present experience and conversion was not driven by emotion although it does contain an emotional component. I don't think I disavow personal fulfillment, Islam is not about asceticism, but I do not make it my main focus and the criteria by which I guide my actions. That is the difference.
OTOH, can you fully say that you accept Islam as an intellectual proposition? If you've read through the Quran several times, you realize that it contains not only the many positive quotes from the site that you linked to, but also many quotes that I suspect you disagree with (e.g. the infamous 'fight and slay the pagans wherever you may find them' (9:5); fornicators or adulterers should be flogged with a hundred stripes (24:2); condemnation of homosexuality; etc). The scholars of Sharia and Wahabbism can support their position from the Quran just as eloquently as the more liberal Muslims can. I am still studying and researching what you mention here, but I can tell you that balance and context is essential for understanding and acceptance and translation of these matters into daily modern life and law.
Even slavery--you say that the Quran discouraged slavery, but still allowed it. That is understandable given its historical context. But if the book is so dependent on historical context, how can you say that it is "what everyone thinks God, in theory, should have given to mankind but didn't"? Shouldn't the book that God gives, if there is such a thing, be good for all times and places? I do believe it is good for all times and places, and soon I hope to do an in depth investigation into this subject, as well as a couple others. I believe the instructions as they were given would naturally lead to a phasing out of the slavery that then existed, at least for those who understood and implemented the guidance therein.
Thanks for all the comments and questions. As I hope you can tell, I don't have all the answers, but I am not afraid of questions, my own or anyone elses, and I am pleased to be able to hold a reasonable discussion about it. I am not offended by your feelings, thoughts and perspectives, and I do not feel under attack. There is a difference between attacking someone and challenging them, and I love to be challenged. The other I don't like so much.