Starworks Artistsby Adam Hartwig,
Full screen image rich One Page portfolio for Starworks Artists, a division of Starworks Group. The recurring preloader can be a touch annoying but this portfolio is a good reference of how you can load a ton of content with AJAX. The responsive adaption is done well, give it a spin.
This website has unfortunately redesigned or gone offline, so I have removed the link to it. The screenshot below hopefully preserved a bit of the design for you.