Stuart Richards posts at The New Libertarian on a topic I've been struggling with lately myself -- intellectual property.
And he doesn't reach any more of a conclusion than I do.
Are intellectual property rights inherent in the creation? Reflexively, it's easy to assert that they are, but it's harder to derive an argument supporting this. Where do intellectual rights come from? Are there "implied contracts" attached to things like music, movies, and art limiting how individuals may use them? If so, what kind of role does the government play in enforcing them? Should they be treated like any other form of contract?
While it's arguable that they were necessary up until just a few years ago to maintain the inventor's incentive motive, the recent explosion in the open source community shows IP rights are, at most, less than vital to continuing creativity. But I'm really not concerned with whether or not (or to what extent) upholding intellectual property rights is beneficial to the economy, but only with the moral arguments supporting or opposing them and the proper role of the state in enforcement.
I count myself in the pro-IP camp, but I'm far from able to make a convincing argument in defense. Perhaps this is why I don't feel at all guilty for sharing over ten gigabytes of music on a number of peer-to-peer networks. Also note the "Creative Commons" copyright notices on this page -- I've chosen to only reserve some rights.
This isn't a big issue today, but as the "file-sharing" generation grows up, it certainly will be soon.