No doubt... John's post is dead on. If you're interested in digital photography organization... this is damn sure for you!!!
Stop what you're doing and check out this video. This is by far the most incredible photo cataloging software that I've ever seen. It looks like it's running on top of Avalon as well (either that or the Microsoft Research folks wrote to Direct3D).
The interesting thing is how it lets you visualize photos based on timelines, and allows you to assign metadata based on timeline groupings. Very compelling use of accelerated graphics.