Randyb,
I realize this is off-topic, but I was nearly elated that someone had wondered into a field I actually know something about. One type of evidence you give on your page for the biblical flood is from comparative mythology.
You correctly reference the fact that a universal flood is a common motif in myth. However, your conclusion that this must indicate an actual event is not valid. First, there are two kinds of floods in myth. The first is the primordial flood, symbolic of chaos, out of which order and the world are drawn. Some examples of this are:
1. The flood of Ymir's blood that washed over everything when Odin and his two brothers slew the giant and before they proceeded to build the nine worlds from his body.
2. Izanagi and Izanami looking down at the water covering the world and, wondering what was under it, stuck a spear or staff into it. The mud that dripped from it made the islands of Japan.
3. In the beginning God created the heaven and the earth. And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters. (Gen. 1:1, 1:2)
So, care must be taken in declaring all flood myths to be the flood of Noah. Is the myth in question analogous to the chaotic pre-creative waters of Genesis or the later flood?
There are myths more analogous to story of Noah. One that comes immediately to mind is the latter parts of the story of Pandora's Box, from Greek myth. Another is the brief mention in the tale of Gilgamesh of the history of Utnapishtim, who held the secret of immortality. He was granted immortality by the gods for being the survivor of a world-wide flood, which is very analogous to the flood of Noah.
I read your page and could not resist, upon seeing the contents there regarding world myth, posting this. I apologize for being off-topic, but at least this concerns the flood.