The George O White nursery is the best thing going. Not so much for ornamentals you want to landscape a lawn with, but if you want a large number of native plants - that's the place to get them.
I'm lucky. I only live 5 miles from them, but they ship all over the state!
I've planted several thousand of their plants (incl. 75 elderberries last year). I've even taken a few small trees and potted them to 'grow them up' for landscaping use. Great outfit ...