>I'm workign on a WinForms app. I want to create a some enums that I can reference throughout the application. Where do I create these?

You can create them in any class that is accessible from the rest of the application :)
For one project solutions I have sometimes put application wide enums in the class that contains static void Main() (by "default" in Program.cs)

In bigger solutions I have created a class with "generic" enums.

Hope this helps,
Einar