Nursing Sundress Pattern?

I am expecting a baby at the beginning of the summer and was thinking that it would be nice to have some sundresses that would make nursing easy.  Any thoughts?  All I can think of so far is something with a button up front but it wouldn't be my ideal.

Burdastyle has a really simple blouse that one of their writers made into a maternity top by extending the side pieces.  You could easily make this into a wrap style dress by lengthening the whole thing.  I've made two of the original pattern and it's very easy and flattering.  You can check it out here:
http://www.burdastyle.com/creations/show/2129

Good luck with your baby!  I'm due May 3rd myself!