Multi-page Photo Gallery: /www.cssplay.co.uk/menu/lightbox.html#tree1. Yet another image gallery from Stu Nicholls.
CSS Star Rating: komodomedia.com/blog/index.php/2006/01/09/css-star-rating-part-deux . Create a very cool, Netflix-like star rating system.
CSS Image Maps: www.frankmanno.com/ideas/css-imagemap/. Create pop-up labels for your photos.
CSS Photo Caption Zoom: http://randsco.com/_miscPgs/cssZoomPZ3.html. Make a ginormous version of a photo appear just by mousing over a thumbnail image.
Revised Image Replacement: www.mezzoblue.com/tests/revised-image-replacement/. Overview of different ways to swap out HTML headlines with stylish graphics.