There was a poll on this topic just over a month ago, but at the moment it seems that power no longer is feeding into my iBook from the power adaptor, and so I'm currently using what's left in the battery to back the thing up onto my desktop computer's hard drive.
It could be the little charger brick that died, or it could be something interal to the machine, but I suspect that it's not worth the cost & hassle of diagnosis (unless someone has one of these charger thingies available for short-term loan).
I suppose this leaves me with a few questions: Can I afford a new laptop? Is a digital SLR a higher priority? If I should go laptop shopping, what should I look for? Is anyone looking for an iBook G3 for parts - or to try to get working again?