You can now listen my posts being read by either a male or female using an automatic text to speech translater developed by Vozme which uses the Festival Speech Synthesis System developed by the The Center for Speech Technology Research at the University of Edinburgh in Scotland.
Festival is multi-lingual though the British and American dialects of English are the most advanced. Tools and documentation for building new voices are available from the Carnegie Mellon University FestVox project.
I have added two white buttoms to the bottom of posts, one marked Male and one marked Female. Just select whichever voice you want to hear my post in. You can also save the post as a MP3 recording.
Try the service out and let me know if you run into any problems.
UPDATE 07/01/2009 I implemented this when I was using Blogspot. Now that I am using WordPress on my own website, I have not yet decided whether to do the same here.