Edit Field Form/Hidden Values

I'm looking for help with form settings. I've created a sample to illustrate my question.

Example: http://ncgv.org/node/add/mystory

Using the above form as an example, I would like to render to preset the drop down variables the form.. In this case the preset would be one of 2 options "foo" or "bar".

here is the form text:

Name (Enter Anon for Anonymous): *

dropdown:
(option 1: foo
option 2: bar)

My Story:
(Enter Text)