AIRTIGHT – PostcardViewer Download: http://www.airtightinteractive.com/projects/postcardviewer/
I meant to mention this a while ago when I was looking at various galleries and it’s a great non-linear way of presenting images, plus it’s free. It just got a lot better for Photoshop users though, as there’s now a script for automatically generating albums.
No, it doesn’t work in Elements 3 (I tried !) but there is an iPhoto exporter mentioned which I’ve not had a go with yet.