Putting words in other people's mouths: more of a hobby than a vocation for most people, I'd say. If your work or play involves facial animation, however, you know how much work goes into making fake speech look convincingly real.
Although there are impressive pro animation tools for this task, they might run you hundreds or thousands of dollars per seat. That's why the Mac version of Reallusion's US$29.99 Crazy Talk 7 Standard is such an intriguing product. For a modest cost, this app delivers impressive character animation power -- with a learning curve that's not too steep for amateurs.
Crazy Talk lets you work with libraries of preconfigured characters, where mouth movements and other motions