Thanks to @mbarrow who tweeted me about the excellent photopeach photo album website. It takes your photos (either uploaded directly from your computer, or from an online servce like Flickr), lets you add a soundtrack of their choice, and then produces two types of album. A slideshow, or (as you can see in the image below showing photos of the history of the school for our centenary) a spiral album that slowly dances its way up through your photos.
The only issue I have with this, and I've contacted the company to ask them, is whether comments can be moderated before appearing at the end of the slideshow (although they do not appear in the spiral display). When I have a reply, I'll post it here and tweet it too.
