I felt it necessary to comment on my own post here.
Everyone and every thing I read said find someone that knows what they are doing. I went for the family friends that I thought were saving me a few bucks.
Everyone else was correct. Hire someone that knows what they are doing.
I found a guy listed here:
http://www.pondboss.com/resource_guide.asp?c=9Turns out (if you read above) I didn't need a liner of any kind, for any reason. I just needed a pond builder that builds ponds without topsoil in the breast of the dam...