GrayNomad, that's a great idea. I really like the idea of making it an online resource, and since that's the sort of thing I do in my day job (my actual job is CTO of a web app development company: www.ivt.com.au) I'd love to have a go at it.
Mowcius, do you mind if I have a go at setting up an online shield database or have you already started work on it?
Jon