To help you compare some of the available text-to-speech programs side-by-side, we've compiled a handy chart. Our chart includes both very high quality, expensive programs, and also more basic, less expensive (or even free!) options. Some may find that a very basic program meets their needs, while others will be impressed by the versatility and wide number of features available in some of the more sophisticated packages.
Click-through the chart image to view in large scale, or download the PDF.
Did we miss a good option? Please share your recommendations (or your experiences with any of the programs mentioned above) in the comments.