[euccastro]

Someone suggested mind uploading too:

http://news.ycombinator.com/item?id=42607

But that, like your Star Trek example, is more pie-in-the-sky science fiction. While it may make you think about the issue, it doesn't force you to confront it in the same way. Brain splitting seems more plausible; I wouldn't be surprised to see something like that in a few years.