Me being the fickle person I am, the wishlist project fell by the wayside pretty much before it even got started. I figured that I didn't need anything complicated to just list a load of items + links to where to get them from - a simple webpage will do. However, cryx prodded me muchly into doing something that lets people register that they've got something for you because she also would like a wishlist of her very own and wants to use my code.
So, I've got off my big fat hairy butt and actually written something. It's by no means finished - I doesn't record who has purchased the items. I figure it has to do that, otherwise random strangers will keep coming along and "buying" everything for you. And you can't delete items yet. But otherwise I'm happy with it.