I've just managed to get hold of a Bamboo Fun (small) tablet from Wacom, which I bought mainly for its cheapness
It's proving tricky to tame at the moment, partly because I naturally hold a pencil in a very odd way and the Bamboo doesn't like it when I hold the stylus like that...

In a few days time I should be able to start using it properly, and perhaps come up with some half-decent deviations.

I'm also alarmingly happy that it came with some good free software, namely ArtRage2 (great fun!) and Photoshop Elements (though I already have Photoshop so that's annoying).