Okay, let's examine the flood for a second here. Indugle me with the data you've checked because it doesn't seem real possible to me.
Yes, there are many other religions that have flood stories. There are also many religions before Christianity that had a Messiah and a resurrection ... is it possible that they're just legends? Is it also possible that a giant flood
appeared to cover the whole world, but in fact only covered what the people of that time knew of the world? They hadn't exactly discovered America yet ... but God surely knew of it.
If the Ark is "found" at some point, here's the problem - it would have to be big enough to hold every species on this planet ... well, 2 of each (including all fresh water fish). How big would it have to be?
There are so many things wrong with that story if it is to be believed literally that if I listed them all here, my post would be as long as yours ;) (only joking!)
Here are a couple to start with (you can read more here:
http://mindprod.com/noah.html - this site also includes all of the calculations to show how much water had to fall per minute):
1) What happened to everyone else that owned a ship?
2) How were all of the animals, insects, birds, fresh water fish gathered and then redistributed to their respective continents?
3) How did Noah withstand the torrential downpour required to cover Mt. Everest in 40 days?