Peter Schonefeld has updated his SVG Fun site at digitalcraft.com.au, which has some great tutorials and examples of SVG. Peter is one of those incredibly annoying people with both technical and visual skills, who can create great looking sites that get the techniques across too.
Michel Pilat, has also created a good SVG tutorial - all in SVG which is a shame, as SVG viewers aren’t that great at navigation etc. - but it certainly shows what is possible with SVG, just need the UA’s to catch up in this area. If you’re needing any help understanding the principle elements of SVG, I definately recommend it, there’s code everywhere, and loads of examples.