This is David Caplan, the web developer at Dolbeau. I don’t know how much web design experience you have but we basically just use the plain old carousel slider from Twitter Bootstrap (http://twitter.github.com/bootstrap/) with some extra javascript thrown in. The key is the CSS that allows the images to be full screen and centered, even when the browser width is smaller.
I appreciate you comparing our site to Apple’s 🙂 Unfortunately, I don’t know of a WordPress plugin that exists for this kind of thing.