So, this evening I came home to find an email saying that the camera is currently being couriered in this general direction. With any luck it will still be in one piece after the courier drivers have finished playing rugby with it.
The email also mentioned the battery and case I had ordered as part of the camera (the battery is apparently a Lithium Ion Battery which means it's rechargeable. Hopefully I've got my terminology correct here). They are not included in the courier parcel. They are apparently going to show up here in another couple of weeks.
I probably shoud have found myself a camera that runs off half a dozen "D" batteries. Apart from anything else, it would actually be camera sized and not something so small I could lose it in my wallet.