Hello-
I just stumbled on this article and thought I'd pass it on. At the bottom, you'll see a list of possible substitutes for recipes calling for eggs. It even addresses the purpose of the eggs in teh recipe, ie. if it is used as a binder or as leavening.
This is the most complete list I've seen and includes many ideas I've not seen before.
Here's the link:
egg substitutes

Alicia