Ok, Its been awhile since Sol posted his challenge to khock, and I know he is probably out of town, but still I feel a need to answer his challenge. So, here I go...
Sol, The first thing I would like to point out is that I don't know of anywhere in the bible that incest is considered a sin. So, if you feel guilty or were admonished about something in your youth, it wasn't the act of incest that would of been the sin, but rather the act of having sex with someone that was not your life partner. If, we are to believe the biblical story, the risks associated with incest, ie. in-breeding and recessive chromosones, would not have been present, since the bodies would have been in a perfect or near perfect state. As sin entered man, then the body was corrupted and incest would have become more and more of a problem. If there was a commandment against incest, it would have had to do more with the dangers of it, rather than the actual act. I will leave it at that and let you respond.

Now, I would like to address your statement that the belief in God is illogical. In my opinion, the exact opposite is true. As science progresses, it is becoming more and more evident that God, in some form, must exist. This form is where most of the debate belongs, rather than than on his (its,her,etc. include) existance. If we look at the quark, we find subatomic particles that combine in different combinations to eventually create the very cells that you mention as being the start of life. If science is right, then inherent in each of these quarks is the basic laws of physics from which all mater forms. In essence, these quarks are your God. Since they most contain all the laws of physics within them, then within each of them is the ability to create everything that is and will be. They also have to be infinite in nature.
So, in my humble mind, it comes down to believing that an inanimate object, or objects, with no apparent form, knowledge, or ability to think created everything, or an animate object with knowledge started it all. Rather than just believing that all mater is, was, and always will be and that every thing is inherent in every thing, I choose to believe that the order of the universe was not and is not chaotic in order (and could not be unless we believe in a universe without the laws of physics) but rather was created by an animate, thinking being.

How I came to my personal beliefs in what form God takes are a whole different story and take a much longer path of discovery. The truth is Sol, you remind me a lot of the sceintists who keep getting excited about finding water or evidence of water in space. They insist that they are open minded and they are searching for life, but in reality they keep looking for life in the forms we know it. In essence, they say they believe in a universe of infinite possibilities but put restrictions on these possibilities at the same time. Any sceintist who says God can't exist, is denying the basic fundamental belief that most sceintific hypothesis are based on.

So Sol, while I am not very versed in sceince and physics, I am a deep thinker, a conservative christian, and a lover of debate. So, come at me with all you have, I may not have all the answers, but I certainly will try my best.
Hope you had a great trip, are nice and relaxed, and are up to taking a few shots at me.