I am looking for some kind of Ajax-based slideshow/banner module for D7 for a changeable front-page photo banner. Unfortunately neither Views Slideshow Ajax nor Ajax Slideshow have been ported to D7 yet. I have several megabytes of photo content and would like to load each image on demand, not load them all at once (which is, as I understand, how most of the slideshow modules work). Right now I am just using a view that returns a randomly-chosen image, but I'd rather have it cyclable by the user with arrows or by a timer.
Are there any existing D7 modules that do something like this? There are so many slideshow, banner, and gallery modules: I may have missed the one I need.