Wow...I don't think I can be any more confused. I accepted Jesus in my heart a long time ago, went down a wrong path, and about seven years ago began my journey back to the Lord. I have been doing a bible study for the past two years and I have to say I feel I haven't even started to scratch the surface. My point is...I may be a bit ignorant in the following statements but bear with me...
The one comment/post made that struck me was VertigoAge's statement about appreciating beauty in others, as long as done in moderation, is not sinful. That part was grouped with drinking, gambling,ect. so it may be I am misinterpreting what was meant. However, "Appreciating" beauty in others, I believe, should be done everyday and I think it is not sinful. If you are appreciating beauty in others, in anything God has created for that matter, I believe you are thanking God for His creations, are you not? It reminds me of a statement made during one of my studies where pastor mentioned that God could have made everything we see in black and white but He didn't. He blessed us with the gift of beautiful colors. The gift of beauty. I don't think it is wrong to see someone on the street, whether you are married or not and think that person is beautiful.
In response to the "fantasy" part...I agree that it is a grey area (another one of God's beautiful colors

). There are so many factors to be considered. I agree that porn is definitely sinful in every way. I don't think anything good comes from porn. If someone can think of something good that comes from even occasional usage of porn, I would love to hear that argument. Fantasizing about having a wife or husband if you are not married I would not believe to be a sin. God wants us to marry and procreate so why would imagining yourself as having these gifts someday to be sinful? If you are married and you fantisize, I have been told that even the thought is considered to be adulterous in God's eyes. This becomes a grey area for me in my own situation. I am married and feel that I have come to a crossroads with the man I married. I feel his journey towards the Lord is tainted and feel his demons have come between my childrens' and my own journey towards Lord. Almost everyday I observe a man who runs an after school program. He is so great with the kids for whom he cares and on many occasions has managed to win the heart of my little boy who has PDD due to a brain malformity. My boy typically ignores men (I have a feeling its because he does not have a good relationship with my husband). I admit to imagining myself with him, but never in a sexual manner. I just imagine he is my husband. I did struggle with this, feeling I was wrong to fatasize about another man. I realized one day though it was not that I was imagining myself with another man literally, but figuratively. Are you being, as I think Life2Christ (and pardon me if I am mis-quoting here) referred to as "prideful" by "wanting" something better if it is wanting something better for someone else? In other words, my "fantasy" about this other man was more about his more Christ-like nature and having that for my children's sake, not necessarily for ME (I think if my fantasy was for my benefit it would have been more sexual in nature).
In my experience, you can ask advice and get so many different ideas - as illustrated in this thread. People have their ideas and thoughts and unfortunately for us our intelligence and our own individual history gives us too much room for interpretation of Lord's word. We read the Bible, we go to church, we do our studies and continue to pray and help others. I feel often times we focus too much on what we shouldn't be doing and not on what we need to do. Ultimately our ability to release ourselves from the driving wheel and let the Holy Spirt guide us is what determines how God wants us to live our lives.