Although I`m not familiar with your area or climate you could consider mulberry, mountain ash and viburnum for berry producing trees/shrubs. For hummingbirds and butterflies, there are lots of salvias, fuchsia, monarda, foxgloves etc that would do well for you. Check out the Hummingbird Garden and Bird watching Forums. There are plenty of knowledgeable and friendly folks there who could give you lots of suggestions more specific to your locale.

I'm not in your area, but I like your question. Here's a link with an overwhelming amount of information for the northeast part of the country. (See link at bottom)

Here's their page for the whole country: http://www.metrofieldguide.com/resources/landscape-for-wildlife-2/landscape-for-wildlife/all-regions/

I'm definitely going to check out the page for my region too.

Kat

Here is a link that might be useful: Landscape for Wildlife: Northeast